After a catastrophic forest fire, a Greek artist transformed scorched tree trunks outside an old sanatorium into this haunting sculpture garden.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

This abandoned asylum in Wales might look haunted, but it's still beautiful.

A subterranean playground in an abandoned slate mine.

This contemplative sculpture made out of old machine parts is meant to be the first in a series of sculptures around the world.

The art museum is decorated with creatively remodeled pre-Nazi swastikas.

A grotesque collection of wax limbs depicting the symptoms of venereal disease.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This ancient hydrological marvel is now the base of a modern outdoor cinema.

This nondescript building hides an entrance to an underground nuclear tunnel system.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

Museum preserving torture methods from the past.

This bronze statue of Martin Luther King was placed in the park without permission.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

An artist's mausoleum with a haunting echo.

One of the last remnants of the Bessemer process that revolutionized steel production during the industrial age.

The whimsical steel spider lurking in the shadows of this suspension bridge shows that engineers can have a sense of humor.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.