A collection of objects supposedly singed by the hands of souls in purgatory.

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

Sculpture garden of religious statues made it through Soviet rule.

Once the home of a hermetic monk, this cave now houses a small church.

Hungarian mummies in beautiful painted coffins.

Mysterious tombstones thought to be remnants of Atlantis.

Lithuania's outdoor sculpture trail of wooden folk art.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

A 16th-century horror show built in a lovely Italian garden.

Ancient burial grounds of the wealthy.

It houses the remains of a 17th-century version of the Titanic.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

Sweden's "good old days" painstakingly re-created in a model village.

This 16th-century monastery has been turned into a surrealist architecture compound.

Walls of stone rise up from sinkholes caused by underwater erosion.

Geothermal waterfalls in Tuscany.

An outsider folly near Madrid.

Numerous sculptures set along hiking trails symbolize and idealize the relationship between man and nature.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Mummified monks and the accidentally interred, in a 17th-century crypt.

This one-time health resort was used by aristocrats around the world.