Stone Age solar temple is aligned with the sun on each equinox and solstice.

A tribute to a man who defied the Nazis until his last breath.

A tribute to a Ukrainian heroine who went undercover and killed several Nazi operatives.

This almost-forgotten underground dungeon housed several convicts over the years, including Caravaggio.

These lesser-known Maltese catacombs date back over 1,700 years.

This unique building in the main square stands out among the city's typically Baroque architecture.

A modern, secular take on a traditional Virgin Mary motif.

A relic from the Industrial Revolution got a second life as a contemporary performing arts space.

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

Where Venice's gondolas go for a tune-up.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

The apartment building where JFK's assassin lived after defecting to the Soviet Union.

A surreal statue honoring Prague's favorite literary son.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

This Minsk museum has cat coffee, cat chess, cat art, and even a cat "staff," which visitors are free to take home.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

One of the most controversial statues in Romania is an emperor with no clothes.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

This Transylvanian church has changed its denomination four times.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

What happens when you cross a mayor and a painter?