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?

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

The preserved arm of a third-century sorcerer is believed to have the power to lift curses and spells.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

Be(w)ar(e) the moat around this historic Czech castle.

A striking Soviet memorial commemorates the liberation of Belarus from the Nazis.

This memorial park stands on the site of one of the largest mass executions of the Second World War.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.