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

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.

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

Apartment complexes built into huge repurposed natural gas tanks.

Physicist’s epitaph provides final confirmation to a career of turmoil.

Hundreds of boat-shaped headstones fill this graveyard as part of a centuries-old custom with mysterious origins.

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

A perfectly preserved hill village where the buildings are painted like white lace.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

The ruins of a 13th-century monastery that long served as a place of refuge from wars and raids.

An abandoned 19th-century iron factory perched along the outskirts of an idyllic village.

An extraordinary museum devoted to the pop art legend created by Slovak artists.

A cheeky architectural easter egg.

The attic of a four-century-old canal house hides a clandestine church.