Super-heavy Nazi architectural experiment.

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

A beautiful and classically designed villa, with an hourly infestation of monsters.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

This legendary city has been a tourist attraction for centuries.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

This folk art compound was built by a fortune teller on the advice of three people from the future.

The patron saint of spinsters grasps a container of dried blood.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

The plague quarantine island home to the alleged "Vampire of Venice."

The ruins of an ancient island city built atop a coral reef in the South Pacific are spectacular and strange enough to have inspired H.P. Lovecraft.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

A gravity-defying "devil's bridge" that has a surprising architectural feature for its stability.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

The oldest church in Iceland is one of the few to feature ornate decoration.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

Jesus' footprints and the first catacombs in the world.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.