A memorial museum to the political prisoners who were held at Sighet Prison, once one of the most feared places in Romania.

Climbing to the top of the cathedral's bell tower offers sweeping views of these medieval ruins.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

A medieval church built up to defend its village.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This bone-filled cave got its name after they found 140 bear skeletons inside.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

Something's watching you.

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

A giant portrait of an ancient king looms over the river.

Conspiracy theories and occult legends surround this mysterious natural rock formation.

A small town Romanian cemetery filled with darkly humorous gravestones.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

This dazzling Art Nouveau mansion is now home to the Modern Art Gallery Subotica.

Stone pillars and a petrified wedding party in the hills of North Macedonia.

This 3,800-year-old site contains markers used to study the movement of the sun and moon and create a lunar calendar.

Space-age monument to an early 20th-century uprising.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

A beautiful mountaintop mausoleum devoted to a Montenegrin icon can't seem to make everyone happy.

This extraordinary geological oddity resembles human-made pavement.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.