The beautiful baroque library of the Hapsburg empire.

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

Macabre museum devoted to historical Viennese murders.

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

Often mistaken as a medieval Gothic monument, this unique cornerstone only dates back to the 1980s.

In an area known in Bratislava’s postal history, this sculpture sits equipped with a functional postbox.

The largest fountain in Bratislava.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

The world’s first statue of the late Apple co-founder.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

The oldest private art gallery in all of Hungary.

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

A museum in the childhood house of a medical pioneer.

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

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

A tribute to the builder(s) of Bitcoin.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

A 13th-century convent where St. Margaret of Hungary spent her teenage years.

Museum dedicated to the terror regimes of Hungary.

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

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.