A subterranean house of worship carved right out of the bedrock.

A stunning architectural yet functional feat, towering over Oslo.

Recently revamped museum of Fijian history located within a gorgeous colonial-era garden.

High winds can make this one scary landing.

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

Tubing through a cave lit with glowworms is a magical underground experience.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A battle between nature and architecture in the Cambodian jungle.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

It houses the remains of a 17th-century version of the Titanic.

The world's second-largest sundial, made entirely out of stone.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

The birthplace of modern China.

The once highest point in China blends symbolic design with a kick of adrenaline.

This ancient Chinese observatory still contains early astronomy technology.

Ming Dynasty necropolis raided during the Cultural Revolution.

The most famous location in China was home to whole dynasties worth of imperial rulers.

This tranquil park with a spiral viewing tower is an off-the-beaten-path area where renowned people have planted a small grove of trees.