A former major munitions plant that has been converted into a sprawling art space.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

The only town in the world with two exclamation points in its name.

Two thirds of this Montreal neon icon has survived to flash another day.

This expansive bridge in the Canadian wilderness was originally just built for friends.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

This bridge was constructed from the rubble of the infamous Bastille.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Historic medieval fortified city in southwest France.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The world's only official college program focused on "clown therapy."

A bas relief commemorates the "Nuns of the Battlefield" who cared for soldiers on both sides of the conflict.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

New Orleans' famous cemetery, located on the site of a former race track.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The world's most active stratovolcano is almost always erupting.