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

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

One of the world's heaviest musical instruments towers within a popular urban park.

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

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

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

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

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

A plaque bearing the names of those who dedicated themselves to protecting Budapest's Jewish population during World War II.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

The metal leaves on this tree are engraved with the names of Holocaust victims.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

Time stands still at this serene burial ground in the center of Budapest.

A fake Transylvanian castle houses a cathedral of antlers.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Budapest's Communist-era statues, banished to the suburbs.

Once the home of a hermetic monk, this cave now houses a small church.

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

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

These were the largest wind chimes in the world when artist Tom Van Sant created them for a California mall in 1967.

An unexpected and peaceful oasis on a hillside.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.