The very center of Paris is surrounded by a bevy of strange good luck rituals.

Notorious artist squat renovated into legal studios.

The celebrated eyesore created by starry-eyed sweethearts.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

A spherical "micro-nation" in the heart of Vienna.

Home to three historic ships from the age of Vikings.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

A little sculpture with a large wardrobe.

The "Prussian Versailles" that is as glorious today as when it was built.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

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

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Paris' linguistic guide to the international language of, yes, love.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This micro-nation may be some sort of prank, but its constitution sure seems official.

An ancient necropolis of magnificent tombs.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

A striking symbol of the Bulgarian capital.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

A fascinating insight into daily life in the Eastern Bloc.