This easily overlooked memorial immortalizes the scars from the 1956 Hungarian Revolution.

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

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

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

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

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

A Hungarian pharmacy museum with a box full of mummy powder.

A museum in the childhood house of a medical pioneer.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

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

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.

Go inside to really appreciate this 500-year-old technological masterpiece.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

This poignant art installation raises awareness of violence against women.

Nestled in the heart of Milan is a real wunderkammer of morbid curiosities.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

A massive 1830s industrial site once known as Czechia's "Iron Heart" has been transformed into a playground of science, technology, and art.

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted.

A spiral staircase twists to the top of this unusual Czech lookout tower.

An underground city of salt.

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