Go inside to really appreciate this 500-year-old technological masterpiece.

The only museum with its curator—and her pets—buried inside.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Famously misunderstood wonder of the ancient world

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

The colorful, smiling concrete silos of Vancouver.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

A famous hotel houses an impression collection of mini dioramas and giant doll houses.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

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

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Home to three historic ships from the age of Vikings.

A tall karst islet popularized by 007.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

A Buddhist theme park brings you a Buddhist version of Hell.

Singapore's landscaping project is home to 18 incredible Supertrees.