This highest peak in New Mexico is named after an explorer who had a habit of lending his moniker to peaks.

These aggressively sustainable art homes look like something out of 1970's science fiction.

A waterfall and cave near Arroyo Seco that inspired the writings of D. H. Lawrence, Willa Cather, and Mabel Dodge Luhan.

A multi-storied adobe complex has been inhabited for more than a thousand years.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

The pockmarks across the building's facade are remnants of the Blitz.

A Jenga-style cylindrical tower of books that appears to go on forever.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

An Italian geologic wonder that served as the inspiration for the landscape of Dante's hell.

A lover's walk between hilltop towns, decorated with graffiti love notes.

Five candy-colored villages on the Italian Riviera.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The largest fountain in Bratislava.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.