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

A fake Transylvanian castle houses a cathedral of antlers.

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

The romantic garden was the epicenter of the Hungarian art scene in the 1880s.

A Hungarian optometrist's charming collection of Asian art and curiosities.

Museum dedicated to the terror regimes of Hungary.

The holes in this wall provide a glimpse into Jewish life in Budapest, both past and present.

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

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

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

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

Half-drowned wooden stumps and stone blocks are all that remain of a Victorian landing that was destroyed by storms.

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

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

A silly medieval mural preserved on the side of a Viennese house.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

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

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

The final resting place for the remains of 143 Habsburg royalty.

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

An ancient artistic garden parlor full of hidden water wonders.

Vast network of air raid tunnels beneath Lombardy's capital.

A Milanese café entirely designed by the American director Wes Anderson.