A forgotten monument to Yugoslavian freedom.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

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

This surreal memorial/cemetery is a necropolis of crumbling stonework and puzzle-shaped headstones.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

Part of a worldwide art project, this mysterious semicircle of concrete shapes holds the pieces of a larger story.

Five candy-colored villages on the Italian Riviera.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

A collection of abandoned typographic signs from Berlin and beyond.

Serbia's master of striking memorials erected a forgotten, hidden gem in the hills outside a tiny village.

Structure built from the skulls of vanquished foes.

Oriental bazaar in the heart of Sarajevo.

These warring psychedelic crags commemorate an unsuccessful military operation.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Legends of time travel and magical woodland creatures bolster the natural charm of this verdant sanctuary in the midst of Moscow.

This nostalgic Russian museum is full of USSR cultural artifacts from the 1970s and 80s.

A tiny park off the beaten path covered in ingenious scrap metal sculptures.

Typewriter museum housing more than 1,500 machines preserves the history of the grandfather of computers.

This contentious squat has stood through fire, violence, and government intervention as a hotbed of leftist protest.

A magical place that lets you play in and explore the world of Studio Ghibli.

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.