An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

In this African village, the walls of the chief's compound are painted with beautiful traditional designs.

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

Romans built the world's tallest artificial waterfall in 271 BC.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

Once the most densely populated place in the world, this island is now a ghost town.

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

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Statue of a decomposing prince that once held his heart in its hand.

The most alien-looking place on Earth.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

An Austrian house of bones filled with hundreds of intricately painted skulls.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

Staves, storm-calling, and of course, necropants.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The self-mummified monks of Japan.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

An architect transformed this abandoned cement factory into his castle-like workshop.

An underground city of salt.