This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

A beautiful modern church dedicated to the teleporting patron saint of Andorra.

Defy gravity at this fascinating Pyrenees overlook platform.

Soviet-era gates guard an unexpected urban forest—and a future U.S. embassy.

Artist Veaceslav Jiglițchi brings a connection to Chișinău through works of art.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Stalinist skyscraper built with help of cryotechnology.

One of the world's tallest statues is also one of its most hated.

Former headquarters of the KGB.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Rotterdammers' dirty minds gave this Santa a dirty nickname and cursed it to a life of wandering.

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

Now a memorial to merchant sailors and Titanic victims, this medieval church was destroyed by bombing raids in 1940.

This bright ship once guided vessels towards the Port of Southampton.

This stream-carved gorge has inspired poets, hidden smugglers, and trained soldiers, all without losing its beauty.

The Isle of Wight’s “Island Line” serviced by former London Underground trains from the 1930s.

Before 1993, this historic-looking village—King Charles III's pet project—didn’t exist at all.

This commemorative stone was erected near the first Scout campsite.

A museum based on the collection of a Victorian family. Housed in a remaining Victorian villa.