The Bong-area park police have asked visitors to please, stop stealing the signs.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

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

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

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

This monument to those fallen in the World Wars is accompanied by a U-boat that Germany bought for a Deutsche Mark.

Real bones which are said to have belonged to a Polish dragon.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

Naturally formed rock city in Poland.

Model Trains and Much More in Hamburg.

Where once there was a train station bathroom, there is now this German burger joint.

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

Cold war icon and onetime "hole" in the iron curtain.

A slice of central Asia in the middle of Berlin.

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

A museum celebrating the self-taught artist-environment builder.

Complex aquaponics systems allow fish and plants to grow in harmony.

A theme park attraction designed to turn your children into LARPers.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

Robots, lasers, and whoopee cushions, oh my!