Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

This former KGB building is now a museum memorializing the people who suffered during the Soviet regime.

3,000 market stands in five former Zeppelin hangars.

The Guardian of Tallinn.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

It houses the remains of a 17th-century version of the Titanic.

Sweden's "good old days" painstakingly re-created in a model village.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This house's itty bitty size means no humans allowed.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Elaborate tile work in this railway station tells the story of Portugal.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

A six-story, asymmetrical tower filled to the brim with scientific experiments.

These 18th century gardens tell a rocky story of the son of Odysseus.

This strange sculpture depicts a giant nightmare hare crushing a man to death beneath its colossal bulk.

Nestled on the banks of a river in Nuremberg is a small museum that was once home of the city's official executioner.

This historic toy museum brings a little whimsy to a city not usually remembered for such things.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

An ornate sculpture of an ox in repose marks the former entrance to Nuremberg's medieval meat market, which was destroyed during World War II.

This lurid German fountain plots the sad course of marriage from dating to death.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.