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

A small town Romanian cemetery filled with darkly humorous gravestones.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Somewhere there is a giant who can no longer poop, but now travelers can stay inside his anus.

An enormous, inside-out glass globe built in 1935.

Part shoe store, part sociopolitical art gallery, part zoo.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

An alien landscape of chalk-rock in the Egyptian desert.

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

Hidden dwellings in the cliffsides of North Togo used by local Moba tribes to evade 18th-century slave traders.

The central mosque of this Mali town is entirely built from mud.

Watch the seas clash at the place where according to Maori tradition, the spirits depart for their journey to the afterlife.

The most alien-looking place on Earth.

A cave network located at the southernmost tip of mainland Greece was once believed to be an entrance to Hades.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

Two World War II aircraft lie within the jungle around this abandoned runway.

A salty red wasteland in Tanzania is a breeding spot for endangered flamingos.

This crumbling Portuguese ruin overlooks the populace it once ruled.

The corpse bride of Portugal.

A majestic hotel for dreamers rises from the center of a fairytale wood.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.