Deceased nuns were placed on stone chairs to decompose, while the surviving nuns prayed near the lifeless bodies.

Houses are tucked between, on, and underneath giant boulders.

In the Scottish Highlands, this 13th-century castle ruin is hidden at the end of a farm track.

On the grounds of a hospital in Ghana, a legendary sword said to have been plunged into the earth hundreds of years ago.

Believed to be the smallest castle in Europe.

3,000 family pets and military animals are buried in this London graveyard.

A painfully obvious spy house sits right across the street from the Russian Embassy.

An abandoned asylum where patients have been forgotten but their possessions remain.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.

The century-old plant starred as the villainous clown's lair in the miniseries based on Stephen King's "It."

A colorful hidden village of the fair folk.

Mysterious wreckage of a small plane has been lodged in this tree since at least 1971.

A floating McDonald's built for Expo '86 is now a derelict relic on Burrard Inlet.

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

This Underground station has been a popular filming location for decades, even before it closed.

The final resting place of a German diplomat's beloved companion.

Hidden in the courtyard of the Victoria and Albert Museum is a little-known tribute to two celebrity pooches.

It's a mystery why these remains were found with no traces of their bodies in sight.

This ancient oak plays host to carvings of magical elves, gnomes, witches, and other creatures prominent in local folklore.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.

The canine-themed book collection claims to be Europe's largest dog library.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

The sumptuous ceiling was one of the last things Charles I saw before his execution.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.