Berlin's old airport.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A fascinating insight into daily life in the Eastern Bloc.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A surreal museum of extraordinary industrial objects.

The most visited, and possibly most controversial, museum in Germany.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A neo-Gothic mansion now houses a wunderkammer of analog tech that hits on all the senses.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

A series of playful yellow penguins share a serious message about the environment.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

Microscopic scenes; some call it novelty, some call it art.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

The first museum in the world devoted to sexual gadgetry.

Macabre astrological automaton clock dating to the late 1400s.

In the Netherlands, one of the world's largest private car collections can be found.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

One of Amsterdam's narrowest houses is located right across the canal from its widest.