15,000 people from over 20 nations lived in these Lower East Side tenements

The architectural evolution of New York City's Chinatown

Cityscapes continuously evolve, and each stage in their transformation tells a unique story. In Manhattan's Chinatown from the 1940s to today, the architecture has bloomed from an ethnic conclave for often mistreated migrants to a vibrant cultural hub today. See varying elevations and facades over time.

At 18, Eleanor taught immigrant children in one of New York's poorest neighborhoods

After finishing school in London, Roosevelt returned to New York and volunteered at a settlement house on Rivington Street in the Lower East Side, working directly with immigrant families living in poverty.

Take a tour of Mark Twain's Connecticut mansion

Twain and his family lived in a three-story, 25-room mansion in Hartford, Connecticut, from 1874 to 1891. Today, the home is a Twain museum, which includes several interesting artifacts, like his annotated books.

The early years of the Met

The Met didn’t start out in the grand, sprawling grounds that it currently occupies. This episode of Hometown History, a podcast about lesser-known historical places and events, covers the early years of the venerable institution. Learn about how the vision and planning of a group of 19th century artists and philanthropists took the Met from a small collection in a humble brick building to the cultural powerhouse that it is today.

The Great Migration helped transform Harlem into the epicenter of Black culture

Starting in 1910, millions of Black Americans moved from the South to escape segregation, violence, and dismal work opportunities. They moved to urban areas in the North, Midwest, and West. Chief among them was Manhattan's Harlem neighborhood, which became an especially desirable location for Black people around 1910.

The architect who made the most of a tiny New York apartment

This short documentary explores the 350-square-foot apartment of Ben Riskin, a New York resident looking to make the most of his new home through hidden storage and ingenious design.

Whose bodies are held inside the American Museum of Natural History?

The American Museum of Natural History holds the remains of at least 12,000 people collected via purchase, donation, or expedition. This article by a professor of art crime details their attempt to identify the individuals whose remains the museum held. Amid questioning, AMNH announced it would change its human remains policy. At the time of the article's publication in October 2023, AMNH had few human remains on public display.

The UN in NYC is an international zone belonging to all member-states

The four primary buildings are located on an 18-acre site on the East Side of Manhattan. The complex has its own postal administration, fire department, and security forces.

Take a 360-degree look inside Hong Kong's coffin homes

Hong Kong's lack of affordable housing is forcing hundreds of thousands of residents to live in "coffin homes" — a tiny partitioned apartment that is about the size of a coffin. Experience life inside a coffin home through this 360 VR video.

Explore the Museum of the World

This collaboration between the British Museum and Google presents an interactive timeline showing artifacts from five world regions. Go back in time and learn about each item from the museum.

New York was the most expensive city to rent a three-bedroom apartment in as of 2025

At an average of $8.4K per month, New York City beat out London, Paris, San Francisco, and others as the most expensive major city to rent in. This visualization shows exactly how the others ranked.

In 1963, a basement renovation in Turkey revealed a passageway to a hidden, multilevel underground city that once housed as many as 20,000 people

Boston opened the first subway tunnel in the US in 1897

By the end of the 19th century, nearly 400,000 people were packed into less than a square mile of downtown Boston, with 8,000 horses pulling trolleys through streets choked with noise, manure, and congestion. This prompted the city to pursue a then-controversial subway system.

Exploring the White City of Tel Aviv, the capital of the Bauhaus style

In 1933, around 60,000 German Jews fled the Nazi regime for what was then Mandatory Palestine. Among them were six Bauhaus students, who accommodated the influx by working with nearly 150 other architects to design over 4,000 buildings that reflected their alma mater's modernist style. This Smarthistory article on the area, now a UNESCO World Heritage site, allows you to see several of its buildings from the comfort of your couch.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

The share of the immigrant population in the US peaked at nearly 16% in January 2025

In January 2025, the US reached a historic high of 53.3 million immigrants—nearly 16% of the population. By June of that year, the number had fallen by more than a million, ending 50 years of continuous growth in the immigrant population.

Roughly 10% of US apartments were owned by private equity firms as of 2025

Almost half of those apartments were purchased after 2021. However, local community groups across the country are experimenting with ways to put residential and commercial real estate in the hands of community members.

Explore the unexpected ways people use public libraries in this 'This American Life' episode

Libraries serve as far more than book repositories. This episode follows a family experiencing homelessness that spent months living in their local library, Iranian students reuniting with family across the US-Canada border because the library straddled both countries, and a Vermont man who built his own library to house unpublished manuscripts.

Take a virtual tour through the White House interior

This immersive 360° tour from the White House Historical Association lets you explore key rooms and see historical details not visible during in-person visits.

Mapping tourism at Machu Picchu

Only 750 people lived at Machu Picchu at its height, but today, almost ten times that number trample through its delicate plazas and agricultural terraces every day. This data visualization vividly illustrates the skyrocketing numbers of visitors to Machu Picchu over the decades, and highlights the risks of over tourism, including soil erosion and other environmental threats, and negative social and economic impacts.

Listen to what it was like living as a medieval leper

This podcast uses paleopathological and anthropological findings to reconstruct what it was like for people diagnosed with leprosy in medieval times on the Eurasian continent. If a town lacked a leprosarium—an isolated leper asylum or colony—or the suspected leper was a foreigner or a Jew, which would make them ineligible for leprosarium admission, they'd be expelled.

Explore a gallery of O'Neill cylinder space settlements

The structures consist of a pair of cylinders with a total enclosed land area of 500 square miles and can house several million people. Each is approximately 20 miles long, 4 miles in diameter, and contains three mirrors that open and close to form a day-night cycle inside.

The world's 10 best places to live

The Economist Intelligence Unit's Global Liveability Index ranked 173 cities based on stability, healthcare, culture and environment, education, and infrastructure. The report shows an overall increase in livability scores compared to previous...

New York artist Donald Judd turned Marfa, Texas, into an artists' haven

In 1971, Judd arrived in the West Texas hamlet in the brutal high desert, not far from Big Bend National Park. He acquired 22 buildings, repurposing them and inviting other artists to create on-site installations. Today, the Donald Judd Historic District is part of the National Register of Historic Places.

The history of New York's first hotel for middle-class women

March 2, 1903, marked the opening of New York's first hotel just for women, generally from the middle class. Prior to the establishment of the "Women's Hotel," it was difficult for solo women to find lodgings in the city. Seeing an opportunity, Charles Day Kellogg raised funds to establish the 400-room hotel, which exclusively served women until 1998. Read more about its history here.

The US sent an iconic photographer to document the Japanese-American internment

After the attack on Pearl Harbor, 120,000 Japanese-Americans were removed from their homes and businesses and sent to internment camps across the American West and Arkansas. This nearly 15-minute video explores how the US government sent famed photographer Dorothea Lange to document the transfer and internment, only to restrict or impound many of her photos when they seemed less than positive.

View the abandoned town of Pripyat, a year after the Chernobyl nuclear disaster

The town's 50,000 residents were evacuated more than a day after the explosions at Chernobyl, leaving behind schools, apartments, and streets seemingly frozen in time. Most evacuees were resettled to Slavutych, about 50 kilometers (31 miles) east of the plant.

In its famous catalog, Sears sold $600 DIY house kits from 1908 through the 1940s, resulting in an estimated 100,000 'Sears and Roebuck homes.'

See the most iconic photos from four decades of LIFE magazine

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

Before the current East Wing ballroom project, only two White House renovations in the past 100 years cost more than $10M.

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by more than 1.5 million Muslims each year.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

Massive 3D printers have been used to build homes by stacking layers of 'concrete toothpaste,' a fire-resistant material that effectively insulates against outside noise.

This real-time tracking of the hantavirus cruise ship outbreak in May 2026 offers a unique glimpse into the global reach of the outbreak and whether the virus sickened passengers and their communities around the world.

See photos of Meteora, a mountainous site in central Greece, home to 14th-century monasteries perched atop soaring outcroppings.

The 19th-century painters of the Hudson River School were among the first American romantics, with portraits that displayed the natural beauty of the young country.

View the ten deadliest tornadoes in US history.

The first horror movie is believed to be George Méliès' 1986 short 'The Haunted Castle,' which pioneered the use of special effects

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

The story of Dollree Mapp, whose legal challenge over her 1957 conviction for possessing "obscene material" led to a major strengthening of the Fourth Amendment

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

Famed poet TS Eliot rejected the manuscript for George Orwell's political fable 'Animal Farm,' writing that its criticism of authoritarianism was not 'the right point of view.'

While atoms are normally made of protons, neutrons, and electrons, exotic ones have been built with antimatter—alternate versions of normal matter that live for fractions of a second and are about a billion times as rare.

Despite being favored by 87% of Americans, Congress does not have term limits.

Some researchers have labeled nomophobia, the fear of being without your phone, as 'the phobia of the 21st century.'