Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This ancient theater was once the home of fierce gladiatorial battles.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

France's most famous cemetery, with some of its most curious tombs.

Breathtaking and huge 430 year old maps of Italy.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

A beautiful deserted greenhouse in the middle of a park.

A volcanic crater that visitors can look inside.

The world's most remote airport.

A Prada store in the West Texas desert that is never open for business.

A UFO scrapyard in the California desert.

A spiritual vortex among the red rocks in Sedona.