This man-made mound monument was built out of soil from all across the Polish empire.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

A 20th-century picture show in 3-D.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

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

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

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

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

A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

Metro station with a claim to rock n' roll fame.

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

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

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

A 12th-century fortress containing some of Berlin's oldest buildings.

A restaurant and observation deck built in a unique broadcasting antenna.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

Berlin's old airport.

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

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

A fascinating insight into daily life in the Eastern Bloc.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.