The haunting ruins of a military fortress turned astronomical observatory sit on a Sarajevo mountaintop.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

What happens when you cross a mayor and a painter?

A vast Communist-era exhibition space in the Bulgarian capital.

A striking symbol of the Bulgarian capital.

Brussels' favorite peeing boy has a sister.

A beautiful and moving memorial set on a little island in the middle of the river in Minsk.

A war-torn Olympic relic is being overtaken by graffiti and nature.

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

"Holy Wisdom" overlooks the city that became its namesake.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

Remnants of the city's Soviet history hover over this modern fast-food outlet.

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

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

Split's smallest church, and one of its oldest, has been reconstructed inside the city's Roman walls.

Oriental bazaar in the heart of Sarajevo.

Gargoyle head that brings good luck.

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

An interactive museum-like experience takes visitors back to 1980s Communist Bulgaria.

Op-art architecture designed for happiness.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Cozy basement bar sports an inventory of over 2,000 beers.

A little sculpture with a large wardrobe.

Hawaii’s largest cemetery rests inside an extinct volcano crater.