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

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

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

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

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

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

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

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

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

A fascinating insight into daily life in the Eastern Bloc.

One of downtown Berlin's last reminders of its Communist past.

Baroque celebration of the end of the Great Plague of Vienna.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

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

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

This uniquely shaped rock formation is one of Scotland's most iconic mountains and gives spectacular views in all directions.

The most loyal of little dogs, or a Victorian era publicity stunt?

This 13th century castle is chock full of ghosts and impossibly rare cows.

The remnants of a depressing public toilet are now a hub of ever evolving street art.

Be on the lookout for the symbolic insect all over the city.

After public executions took place at this location, attendants would also attend a local horse race.

This network of narrow, medieval passages has the most delightful name.

The remains of an ancient bathhouse sit inside this aptly-named pub.