An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A floating cat sanctuary on an Amsterdam canal.

Cat art as far as the eye can see.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

This hidden collection of everyday objects illustrates life within communist Poland.

Catch a scenic view of Warsaw's Old Town from the top of a centuries-old dumping ground.

This bell stars in a tragic love tale and is said to make wishes come true.

A statue honors the children who fought Nazis in Poland.

A delightful museum entirely dedicated to the tiny homes of dolls.

An odd museum dedicated to French fakes.

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

A series of abstract, silly sculptures represent the works of a great modern classical composer.

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

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

César Baldaccini's iconic sculpture of a 40-foot thumb stands tall in La Défense.

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

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Inside a former cabaret, seven floors of erotic art.

France's national museum of scientific and industrial instruments.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

Dolls of all shapes and sizes display the eras of femininity in this spooky and beautiful collection.