Only a fragment of this 15th-century Dance of Death survives today.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

A medieval setting reimagined into a unique art alley.

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

An underground nightclub helped spark a "Singing Revolution."

Shipwrecks, ruins, and turtles are all that remain on this haunting Caribbean ghost island.

The mouldering manses of wealthy colonials still pock the streets of a Curaçao neighborhood.

Like something out of a pulp adventure, this abandoned plane wreck is slowly being retaken by the Caribbean jungle.

This living labyrinth made entirely of thorns is filled with art.

These abandoned Cold War-era bunkers are now a designated refuge for endangered bat species.

A meteorite-bounded town in Bavaria.

An ancient pagan site swirling with legends in the foothills of Franconian Switzerland.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

New York's oldest magic store.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A long abandoned hospital building on the outskirts of NYC.

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

A formerly abandoned mental institute, now back in business.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

An unrealized dream to wirelessly electrify the entire Earth.

The second-largest (of only two in the world) large particle collider is the underdog of experimental physics.

A fire station-turned-church-turned-museum dedicated to the work of seminal light artist Dan Flavin.