This enchanting mountain plateau celebrates spooky local folklore.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

A saintly relic hidden in a Prague church basement.

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

A marine aquarium with an astounding variety of fish hides in the basement beneath the famous Palm House.

An unsanctioned shrine that sprung up outside the late singer's home is causing a stir in London's Highgate neighborhood.

A decommissioned tube carriage within a London museum hosts a regular pop-up supper club.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

A measuring mishap led to these artificial stone ladies losing their stomachs.

The London statue that imitates passersby.

Where Aleister Crowley attempted to seize the Hermetic Order of the Golden Dawn in a mask and a kilt.

The sculpture of the deceased cockatoo flops atop its personal plinth.

These morbid carvings remind churchgoers of the inevitability of death.

The broken skateboards that became a poignant memorial to a murdered skater.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

This overlooked street light once served as a KGB dead letter box.

A church of bones, decorated with 40,000 human skeletons.

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

Ukraine's oldest operating pharmacy now offers guests a fascinating walk through apothecary history.