Look closely and you’ll notice that the color changes a third of the way up the tower.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

The curious underground history of keeping Paris clean.

Ancient snack bar of the Roman Empire re-opened.

The walls and streets of the ancient city are peppered with penises.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

Legendary site where an evil bishop was devoured by rodents.

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

The celebrated eyesore created by starry-eyed sweethearts.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.