The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The solemn exterior conceals an opulent interior of this 17th century church.

An exquisite Baroque church in Vienna's old town.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

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

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

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

Carved fountains poignantly placed in parks and in front of special monuments.

Fantastic views and thousands of love locks.

From Nazi chemicals to the CIA, this architectural marvel has played a fascinating role in German history.

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

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

Tiny memorials honor individual victims of the Holocaust.

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

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

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

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

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A surreal museum of extraordinary industrial objects.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

This once-derelict building is now one of the most beautiful bookstores in the world.