People have been living in the cave houses on this Italian hillside since the Neolithic era.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

A place to see how French aristocrats lived in the early 1900s.

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

A whale of a public art display towers atop Juneau's cruise ship dock.

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

Huge stone depressions which may have acted as an Incan agricultural experiment.

Sleep in a glass pod dangling off a cliff.

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

Why walk on this historical site when you can zoom down instead?

North Korea's massive art and propaganda factory now has an official gallery space in Beijing.

This probably wasn't what Mao had in mind.

The South African dialect's complex history is immortalized in stone, in one of the world's only monuments dedicated to a language.

A gem in the small Missouri town where Winston Churchill coined the term "Iron Curtain" and effectively began the Cold War.

Away from the crowds of fishing enthusiasts, take a hike deep into the woods and journey into an eerie darkness.

One of America's first planned communities is preserved in a state park.

This unconventional used book store was once in the news for the surprising act of burning books.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

A beloved, quirky little fountain featuring a large frog spitting water at a naked boy.

This otherworldly church spire reaches up toward the heavens.

The ruins of a 19th century shelter run by the Independent Order of Odd Fellows.