The World in Miniature

In the model of St. Peter’s Square in Vatican City, the statues of saints on the colonnades wear clothing made of paper napkins from the Wunderland bistro. Credit: Andreas Meichsner for The New York Times
In the model of St. Peter’s Square in Vatican City, the statues of saints on the colonnades wear clothing made of paper napkins from the Wunderland bistro. Credit: Andreas Meichsner for The New York Times
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The World in Miniature

In the model of St. Peter’s Square in Vatican City, the statues of saints on the colonnades wear clothing made of paper napkins from the Wunderland bistro. Credit: Andreas Meichsner for The New York Times
In the model of St. Peter’s Square in Vatican City, the statues of saints on the colonnades wear clothing made of paper napkins from the Wunderland bistro. Credit: Andreas Meichsner for The New York Times

We had an all-encompassing view of Rio de Janeiro and its surroundings: Sugarloaf Mountain, the Christ the Redeemer statue, Copacabana Beach. Architectural novelties like the Niterói Contemporary Art Museum and the Metropolitan Cathedral stood out among the sea of buildings, as trains and streetcars passed by, and thousands of dancers swayed and strutted during the city’s Carnival celebration.

Yet Rio was more than 6,000 miles away, while my husband, son and I stood in a building in the Speicherstadt, the historic warehouse district in Hamburg, Germany.

The scene we admired is one of more than a dozen sprawling exhibits at Miniatur Wunderland, home to the world’s largest model railway and largest miniature airport. The meticulous replica of Rio came on line as Wunderland’s newest exhibit in December 2021, constructed over four years in partnership with a family-owned model-making company out of Argentina.

“Mind-blowing,” my husband said several times during our five hours of marveling at reproductions of Germany, Italy, Scandinavia, the United States and other sites, complete with tiny hand-painted figures participating in the myriad activities of daily life. Through all of the landscapes, trains continually chugged along a total of 16,138 meters (almost 53,000 feet) of track.

The project started in 2000 when the twin brothers Frederik and Gerrit Braun, then 32, dreamed of creating the largest model railroad in the world. The siblings, who grew up as train buffs, wound up running a Hamburg nightclub and record label in the 1990s, but eventually they wanted a lifestyle change. With help from friends and family, the Brauns opened Miniatur Wunderland’s life-size doors in 2001.

In the 21 years since, the attraction has drawn more than 21 million visitors from around the world, becoming one of Germany’s top tourist draws. Yet in the United States, Miniatur Wunderland is primarily known among railroad buffs and other hobbyists.

Count us lucky to have a son, now 15, who has been obsessed with planes, trains, cars and anything else that moves mechanically since he was old enough to point. Lucky because I hadn’t known about Miniatur Wunderland, despite having made numerous trips to Germany, as the daughter of two German-born parents. My son, on the other hand, had been talking about Wunderland for years, ever since he discovered some YouTube videos of it. He was particularly interested in the working airport, which averages 500 takeoffs and landings a day, displayed on a flight monitor (the difference: these model planes are always on time).

So when we planned a trip back to Germany in August to see family in Munich, we added a detour to Hamburg to visit Miniatur Wunderland (and bought tickets online a month in advance for the timed entry). My husband and I wanted to indulge our son, an only child, but what we didn’t anticipate was our own enchantment with this tiny world, full of painstaking detail and technological wizardry, sure, but also bursting with whimsy and humor.

Take the diorama of Italy, for instance. Among the faithful reproductions of St. Peter’s Basilica, the Colosseum and Mount Vesuvius (complete with regular eruptions), there are little moving vignettes, activated by pressing a button (200 such buttons exist throughout Wunderland). In one, Pinocchio’s nose grows six inches across the room of a tiny cottage. Elsewhere, a small Michelangelo bounces on a trampoline to reach the Sistine Chapel ceiling with his paintbrush. Creative license? Absolutely.

“That was the model builder saying, ‘I could have put Michelangelo on scaffolding, but nobody would see it. What could I use instead to show him painting?’” said Thomas Cerny, a software developer and spokesman for Miniatur Wunderland, in a recent phone interview. “The model builders are what make the whole exhibition special. If you know them, you can even tell who built what, as each one has their own sense of humor,” Mr. Cerny added, while sharing with a chuckle that the 100 or so statues of saints on the colonnades in St. Peter’s Square wear clothing made of paper napkins from the Wunderland bistro.

As we moved from exhibit to exhibit, directing each other this way and that to point out some new captivating feature, we appreciated that the landscapes were anything but static. In addition to the trains, cars and boats that travel about (in the Scandinavia section, ships navigate tides in real water), most of the almost inch-high figures are doing something, animated in their depiction if not through actual movement. “As time went on, the model railway became less important, and the storytelling and the creativity became much more important,” Mr. Cerny said.

On the fourth floor, we passed by the central command for all of the exhibits, filled with large screens and electronics. It was like an open kitchen. Not only do the systems that control the trains, vehicles and lighting originate here, but video cameras let staffers monitor things like train derailments and other glitches that can occur with so many moving parts.

We discovered that it’s not always sunny in Miniatur Wunderland, either. Every 12 minutes, the exhibits shift from day to a three-minute-long night, and the real rooms darken as almost half a million LED lights twinkle within the dioramas. Each of those lights is programmed to turn on in sequence rather than all at once, creating a condensed simulation of nightfall. “The brothers are perfectionists,” Mr. Cerny said of the founders.

The New York Times



'Breathtaking': Artemis Astronauts Blast towards Moon

This image taken from video provided by NASA shows the Earth, left, from NASA's Orion spacecraft as it fired its engines heading toward the moon Thursday, April 2, 2026. (NASA via AP)
This image taken from video provided by NASA shows the Earth, left, from NASA's Orion spacecraft as it fired its engines heading toward the moon Thursday, April 2, 2026. (NASA via AP)
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'Breathtaking': Artemis Astronauts Blast towards Moon

This image taken from video provided by NASA shows the Earth, left, from NASA's Orion spacecraft as it fired its engines heading toward the moon Thursday, April 2, 2026. (NASA via AP)
This image taken from video provided by NASA shows the Earth, left, from NASA's Orion spacecraft as it fired its engines heading toward the moon Thursday, April 2, 2026. (NASA via AP)

Four Artemis astronauts were zooming towards the Moon late Thursday after a major engine firing, a milestone that commits NASA to the first crewed lunar flyby in more than half a century.

With enough thrust to accelerate a stationary car to highway driving speed in less than three seconds, the Orion capsule engine blasted the astronauts on their trajectory towards the Moon, which they now will loop as part of the 10-day Artemis 2 mission, reported AFP.

In the moments that followed what the US space agency dubbed a "flawless" firing that lasted just under six minutes, astronaut Jeremy Hansen said that "humanity has once again shown what we are capable of."

The astronauts said they were "glued to the window" taking pictures, and later passed a floating microphone back and forth as they took questions from US television networks.

They said the spacecraft was a little chilly and they were still making it a home, but the crew was all smiles.

"There's nothing that prepares you for the breathtaking aspect of seeing your home planet both lit up bright as day, and also the Moon glow on it at night with the beautiful beam of the sunset," said Christina Koch.

Thursday's nudge came one day after the enormous orange-and-white Space Launch System (SLS) rocket carrying the Orion capsule launched from Kennedy Space Center in Florida for the long-anticipated journey around the Moon.

The astronauts are now on a "free-return" trajectory, which uses the Moon's gravity to slingshot around it before heading back towards Earth without propulsion.

"From this point forward, the laws of orbital mechanics are going to carry our crew to the Moon, around the far side and back to Earth," NASA official Lori Glaze said.

The astronauts are wearing suits that also serve as "survival systems" -- in the unlikely case of a cabin depressurization or leak, they'll maintain oxygen, temperature controls and the correct pressure for up to six days.

The astronauts -- Americans Reid Wiseman, Victor Glover and Koch along with Canadian Hansen -- spent their first hours in space performing checks and troubleshooting minor problems on the spacecraft that has never carried humans before, including a communications issue and a malfunctioning toilet.

Queried on the toilet situation, Koch said she was "proud to call myself the space plumber.

"I like to say that it is probably the most important piece of equipment on board," she said. "So we were all breathing a sigh of relief when it turned out to be just fine."

- 'Herculean' -

Crewmembers also had their first workouts of the mission on the spacecraft's "flywheel exercise device" -- each astronaut will carve out 30 minutes a day for fitness, a bid to minimize the muscle and bone loss that happens without gravity.

The 10-day mission is aimed at paving the way for a Moon landing in 2028.

Artemis 2 marks a series of historic accomplishments: sending the first person of color, the first woman and the first non-American on a lunar mission.

If all proceeds smoothly, the astronauts could also set a record by venturing farther from Earth than any human before.

"There is nothing normal about this," said Wiseman. "Sending four humans 250,000 miles away is a Herculean effort, and we are now just realizing the gravity of that."

The Artemis 2 mission is part of a longer-term plan to repeatedly return to the Moon, with the goal of establishing a permanent base that will offer a platform for further exploration.

The current era of American lunar investment has frequently been portrayed as an effort to compete with China, which aims to land humans on the Moon by 2030.

Asked about division closer to home and what message they had for Americans, Glover said from his vantage point, "You look amazing. You look beautiful."

"From up here, you also look like one thing," he added. "We're all one people."


Trump Ballroom Approved by Panel, Remains Stalled by Judge

Donald Trump has cited the need for the ballroom to host state dinners for visiting dignitaries. Mandel NGAN / AFP/File
Donald Trump has cited the need for the ballroom to host state dinners for visiting dignitaries. Mandel NGAN / AFP/File
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Trump Ballroom Approved by Panel, Remains Stalled by Judge

Donald Trump has cited the need for the ballroom to host state dinners for visiting dignitaries. Mandel NGAN / AFP/File
Donald Trump has cited the need for the ballroom to host state dinners for visiting dignitaries. Mandel NGAN / AFP/File

US President Donald Trump's White House ballroom won final planning approval on Thursday, but construction remains in limbo following a court order that he needs congressional approval.

The National Capital Planning Commission (NCPC), which has several Trump appointees on its board, greenlit the plans in an 8-1 vote, said AFP.

The project aims to construct a massive ballroom on the site of the White House's East Wing -- previously best known for housing the First Lady's offices. It was demolished in September.

Trump expressed his thanks in a post on his Truth social media platform, saying, "when completed, it will be the greatest and most beautiful ballroom of its kind anywhere in the world."

Planning approval does not, however, mean construction can go ahead unchecked.

On Tuesday, a federal judge ordered a halt to construction, saying Trump needed congressional approval. The president is "steward" of the White House, Judge Richard Leon wrote. "He is not, however, the owner!"

Will Scharf, the commission's chairman and a political ally of Trump, addressed the lawsuit before the vote, saying, "That order really does not impact our action here today.

"From my perspective, we have a project before us. We've been asked to review it, and that's really our job here today."

He noted that Judge Leon had placed a two-week delay on his stop-work order to allow the Trump administration to appeal.

The ballroom has become a passion project for Trump during his second term: the president often discusses the plan in public appearances, press conferences and meetings.

Trump has repeatedly said that a large ballroom is needed to host, among other key events, state dinners for visiting dignitaries.

"For more than 150 years, every president has dreamt about having a ballroom at the White House to accommodate people for grand parties, state visits, and even, in the modern day, inaugurations," Trump wrote on Truth. "I am honored to be the first president to finally get this much-needed project, which is on time and under budget, underway."

He has promised to meet the costs -- estimated to be upwards of $400 million -- with private donations, not tax payer money.


Waste Water to Clean Energy: Japanese Engineers Harness the Power of Osmosis

Engineers in the city of Fukuoka and their private partners have opened what is only the world's second osmotic power plant. Philip FONG / AFP
Engineers in the city of Fukuoka and their private partners have opened what is only the world's second osmotic power plant. Philip FONG / AFP
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Waste Water to Clean Energy: Japanese Engineers Harness the Power of Osmosis

Engineers in the city of Fukuoka and their private partners have opened what is only the world's second osmotic power plant. Philip FONG / AFP
Engineers in the city of Fukuoka and their private partners have opened what is only the world's second osmotic power plant. Philip FONG / AFP

A Japanese water plant is harnessing the natural process of osmosis to generate renewable energy that could one day become a common power source.

The possibility of generating power from osmosis -- when water molecules pass from a less salty solution to a more salty one -- has long been known.

But actually, generating energy from that has proved more complicated, in part due the difficulty of designing the membrane through which the molecules pass, said AFP.

Engineers in the city of Fukuoka and their private partners think they might have cracked it, and have opened what is only the world's second osmotic power plant.

It generates power from the transfer of molecules between treated sewage water and concentrated seawater, a waste product from a desalination plant in the city.

"If osmotic power generation technology advances to the point where it can be practically used with ordinary seawater... this, in turn, would represent a major contribution to efforts against global warming," said Kenji Hirokawa, manager at Sea Water Desalination Plant.

Osmosis is familiar to most people. It is the process that, for example, causes water to seep out of a cucumber or eggplant when sprinkled with salt.

Water molecules move across membranes from an area of low solution concentration to an area of higher concentrated solution.

At scale, that movement can be significant enough to turn a turbine and thereby generate electricity.

Desalination solution

Fukuoka is particularly well-placed to benefit from the technology because it has a readily available source of extremely salty water -- the brine leftover from desalination.

With no major rivers to sufficiently source its water, the city and wider Fukuoka region of 2.6 million people have relied on a major desalination plant to produce drinking water since 2005.

That left the city with large quantities of concentrated saline wastewater to deal with.

Ordinarily it is diluted and released back to the sea. Previous attempts to find alternatives, including salt making, failed to gain traction.

Then engineering firm Kyowakiden Industry approached the city about harnessing the salty wastewater for osmotic power.

"When our company rolls this out as a business, we aim to build plants roughly five to 10 times the scale of this current facility," said Tetsuro Ueyama, research and development manager at the Nagasaki-based company.

In Fukuoka's system, a generator is attached to a local desalination plant located near a sewage treatment facility.

It draws in highly saline wastewater from the desalination plant and receives treated sewage.

The two separate streams of liquid go through a number of chambers separated by semi-permeable membranes through which water molecules travel from the treated sewage toward the salty water.

That process increases the volume, pressure and speed of the saline water flow, spinning a turbine that generates electricity before the now-diluted mixture is discharged to sea.

The 700-million-yen ($4.4 million) power generation system came online last August, and once running at full capacity, it should generate up to 880,000 kilowatts annually, equivalent to the electricity consumption of 300 households.

However, it will remain devoted to supplying the power-thirsty facility, although it covers just a tiny fraction of its energy needs.

Not 'a pipe dream'

The engineers involved, however, are dreaming big.

The system will go through a five-year test to monitor its performance, including costs and maintenance, particularly for the membrane and other parts exposed to salt.

Financial details of the project have not been disclosed, but engineers admitted that for now the system's power costs "a lot more" than either fossil fuel or renewable energy.

Pumping the water into the system also uses energy itself, and scaling up osmotic power for grid-level energy production has not yet been done anywhere in the world.

Still, officials and experts believe the power source has a future, noting that unlike solar and wind, it is not dependent on weather or light.

And the current high costs are partly because the company had to build a one-of-a-kind power plant, Ueyama said.

Osmotic power has often been seen as primarily useful for estuary areas, where freshwater river flows meet the salty ocean.

But Ueyama said the technique being used in Japan could be useful for countries with large desalination facilities like Saudi Arabia and other Middle Eastern nations.

Kyowakiden is also working on technology that could generate similar power levels from less salty regular seawater.

"First we want to popularize this technology from Fukuoka to the rest of Japan. In order for us to do that, we want to further upgrade our technology to create osmotic power generation that can use ordinary ocean water to generate electricity," he said.

"We don't think this is a pipe dream."