From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

This poignant art installation raises awareness of violence against women.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

This Ukraine alleyway has become its own little island of forgotten things.

Monumental sculptures guard many of the graves, transforming this necropolis into an open-air fine art museum.

Catacombs turned marketplace.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

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

Macabre astrological automaton clock dating to the late 1400s.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

A pair of connected skyscrapers form this symbolic gateway.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

People in Poland have rallied to save this unnatural desert from being reclaimed by the forest.

An open-air museum of 18th-century homes and churches transported from various villages in Southern Poland.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

Relive a Polish uprising via an enormous, century-old cyclorama.

This picturesque castle in Poland has a rich history, including a legend that ties it to lost Incan treasures.

This fairytale medieval church in Poland originally spent centuries in Norway.

A mysterious emblem tucked in an small alleyway is actually the coat of arms of a heroic medieval family.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

A striking public sculpture representing the period of martial law in Communist Poland.