Leaning Italian tower could fall after nine centuries

Explore the world's most famous leaning towers and structures

Pisa gets all the fame, but the quirk of a tilt adds precarious charm to dozens of famous buildings around the world. There are Pisa replicas, but also old castle towers, crooked houses and tilted churches and mosques.

A Manhattan building doomed to collapse was saved in secret

After completing the Citicorp Center, its engineer realized that cost-cutting measures to use bolted instead of welded joints made the building vulnerable to collapse under quartering winds. For three months, crews worked in secret at night to reinforce the building under Project Serene.

The ancient engineers inspiring modern building practices

Modern concrete structures need replacing every 50 to 100 years, so why are buildings by the Maya, ancient Rome, and ancient China still standing strong? This article details how scientists are looking into humanity's past for clues on how to craft long-lasting structures. Part of the problem is adopting old material recipes to hold up to modern demands.

Fascinating photos of abandoned Italian churches

Whether cloaked in thick moss and debris or almost entirely preserved, the abandoned churches photographed by Roman Robroek document the effects of a changing landscape. At least 1,000 of the religious spaces are left unoccupied in both small towns and cities throughout Italy and stand in varying stages of decay.

A nearby super volcano poses an even greater risk to Italy than Vesuvius

The Campi Flegrei supervolcano, with over half a million residents nearby, may be the region’s true threat. This BBC short shows how scientists monitor Campania’s volatile geology—and why people remain drawn to the landscape despite the danger.

Counterweights can dampen the impact of seismic activity on buildings

Japan’s Tokyo Skytree uses a free-moving central column inspired by ancient pagodas, while Taiwan’s Taipei 101 contains a 660-ton pendulum on its 92nd floor that swings out of sync with the building.

Italian banker catches 3-year-old girl falling from a fifth-floor balcony

In Turin, Italy, in August of 2023, a man walking to the bakery with his girlfriend became a hero when he saw a 3-year-old girl climbing out of a fifth-floor window. This article collects social media posts around the incident and explains what...

The impressive walls of Constantinople

This video explores the land walls of Constantinople, built on the orders of Theodosius II in the mid-fifth century. They consisted of a triple line of defenses, studded with hundreds of towers and supplemented with a moat. The walls were besieged dozens of times, but were only broken in 1453 by the power of Ottoman cannons. As repaired by the Ottomans, the walls are still largely intact today.

Why water towers are built that way

Watch the Arecibo Observatory collapse

Watch this remarkable footage of the Arecibo Observatory’s 900-ton platform falling into the 1,000-foot wide (305 meters) dish below, followed by footage from a drone coincidentally observing the cables at the time they snapped.

Tombaroli steal precious items from ancient people's tombs in central Italy

The tombaroli, or tomb-robbers, raid ancient Etruscan tombs in the dark hours of the night to recover vases, statuettes, mirrors, ornaments, jewellery, and other objects in gold, bronze, and terracotta. Read a firsthand account of a tombarolo who made a living handing stolen items to middlemen who sold them to wealthy buyers abroad. The lives and practices of tombaroli are also explored in the 2023 film "La Chimera."

How the Bank of Italy became Bank of America

Amid the devastation of the 1906 earthquake in San Francisco, Italian immigrant and local banker Amodei Giannini managed to keep hold of a substantial amount of currency. On a handshake, Giannini loaned needy locals money to rebuild. The enterprising banker would go on to form one of the first banks for the middle class, the Bank of Italy, which would go on to become the Bank of America in 1930. Read about the founder here.

The last Inca grass suspension bridge in Peru

High in the Peruvian Andes, the aging Q’eswachaka bridge sags precariously over the Apurímac River. It has been built and rebuilt continuously for five centuries. Read more about it here.

Nikola Tesla's original laboratory was recognized as a historical site in 2018

Beginning in 1901, the Wardenclyffe Tower was built on Long Island, New York to transmit electrical power through Earth's atmosphere. The project was abandoned before becoming operational due to limited funding, and was demolished for scrap in 1917 to help pay off Tesla's debts.

Medieval hospitals existed centuries before modern medicine

Long before modern healthcare, medieval Europe established hospitals that served multiple roles, including religious, social, and medical purposes. This podcast explores how institutions like Siena’s Ospedale di Santa Maria della Scala supported urban and rural communities for centuries.

The word 'influenza' comes from a 15th-century Italian belief in the stars

In Renaissance Italy, epidemics were thought to result from the influence of natural disasters or celestial bodies. The illness was named "influenza", meaning “influence” in Italian.

The western Roman Empire fell in the 5th century CE amid invasions, weakness

A mix of over-expansion, political instability, a weak military and economy, and the broad invasion of the Eurasian Huns prompted the downfall. Its eastern half, the Byzantine Empire, would last for another millennium.

Niagara Falls is slowly eroding backward toward Lake Erie

At its current erosion rate of roughly one foot per year, Niagara Falls is expected to retreat all the way to Lake Erie in about 50,000 years.

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

The 12 tables: Rome's attempt to fairly enforce the law

It's unclear exactly why ancient Romans drafted the Laws of the Twelve Tables in the mid-400s BCE, but the result was a collection of precisely worded, written laws that could be made known to everyone. This article explores the history and importance of these 12 bronze tables, which were an attempt to make the law equally applicable to all and were destroyed when Rome was attacked in 390 BCE.

The title of 'World’s Largest Christmas Tree' is disputed

Cities in the US, Italy, Germany, and the Netherlands all claim they have the world’s largest Christmas tree—ranging from massive evergreens, TV and communication towers, and hillside light displays.

Portugal's 1775 earthquake is considered Europe's first modern natural disaster

An 8.5-magnitude earthquake off the Portuguese coast nearly destroyed Lisbon, killing thousands, creating 16-foot-wide fissures in the city, and triggering a massive tsunami. Historians credit it with jump-starting the Enlightenment in the region, with many thinkers seeking natural explanations.

Explore the archaeological treasures of Pompeii, the city buried under volcanic ash when Mount Vesuvius erupted in 79 CE.

Tracking the accuracy of past and future predictions of the apocalypyse

Religious figures, scientists, technologists and others have long heralded the ending of the world in what in some traditions is called the apocalypse. This site tracks those failed predictions in the past and charts those coming up in the future.

Hearing loss can affect balance and make falls more likely

For reasons that are not yet fully understood, hearing loss seems to increase the risk of falls. One explanation is that reduced environmental awareness due to hearing loss may put people at greater risk. Another theory is that the brain has to work harder to process sound with hearing loss and that cognitive load may also boost the chances of falls. One study found that for every 10 decibel increase in hearing loss, there was a 1.4 fold increased odds of falling in the preceding 12 months.

Shakespeare’s Globe Theatre burned down

During a June 1613 performance of “Henry VIII,” a theatrical cannon misfired and sent sparks into the theater’s straw roof, forcing the 3,000 attendees to evacuate. No one was killed, though the theater burned down in roughly an hour.

An electric pipe organ in Germany is playing a song for 639 years

Created by composer John Cage, the Halberstadt organ first began playing the piece in September 2001, and has since made only nine chord changes. The device within a medieval church utilizes compressed air to play continuous tones. The next chord change is scheduled for August 2026.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

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

Discover the catastrophic consequences of a failure of the US electrical grid—something that is more likely than many Americans think.

70 years ago today, city officials in Santa Cruz, California, banned rock 'n' roll to protect its youth from corruption after witnessing a 'provocative' concert the night before.

The Mona Lisa's celebrity status and repeated restorations have obscured what made the painting so revolutionary for its time

Legendary architect Frank Lloyd Wright designed the SC Johnson headquarters in Wisconsin, aiming to make a cathedral-like workplace

Learn more about the history of fireworks, which dates back to an accidental invention during an alchemist's quest for information about immortality.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

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

Hotels in Cannes, the glamorous city on the French Riviera, hire hawks to ward off seagulls during the city's famous film festival.

Artificial coral reefs have been 3D printed from nontoxic, biodegradable terracotta clay, which coral polyps have used as a foundation for rebuilding marine ecosystems.

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year

Some coin denominations have ridges etched on their sides, partly to prevent counterfeiting, in a practice called 'reeding.'

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

Abraham Lincoln was almost assassinated weeks before his inauguration as he traveled from Illinois to DC through Baltimore in 1861; it took two independent claims for Lincoln to be convinced the threat was real

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

In 2018, 26-year-old missionary John Allen Chau was killed by tribesmen after attempting to reach and evangelize on India's isolated North Sentinel Island

El Niño, Spanish for 'the boy,' was named after Jesus Christ because the phenomenon resembled the weather changes observed around Christmastime.

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 the sun's gravity keeps the planets in orbit, their gravity also pulls on the sun, causing it and everything else in the solar system to orbit around a mutual balance point called the barycenter—the true center of the solar system.

The 2026 Ebola outbreak in the DRC is spurring new Ebola vaccine development for the Bundibugyo species.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.