A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

One tiny triangular park commemorates the victims of a yellow fever epidemic—many of whom are buried right below the grass.

The skeletal white beams stand as a monument to religious dissent.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

Museum preserving torture methods from the past.

Where America's first doomsday cult awaited the end of the world.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A magical place that lets you play in and explore the world of Studio Ghibli.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A fascinating little museum all about the rich history of Peru’s famous plant.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Hidden amid the tropical forest in the Caribbean Sea are the decaying ruins of the Cocaine King's luxurious island party home.

An explosion of natural color known as "the river that ran away from paradise."

This small Brazilian museum honors the work of a German biologist who studied the jungles for decades.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

Tubing through a cave lit with glowworms is a magical underground experience.

This church devoted to Mexico's "dead saint" is a festive celebration of a formerly hidden religious figure.

The ruins of an ancient city built by Mayan traders is centered around a temple of a sacred feathered serpent deity.

A barbarous band of serpents guard the bases of these Aztec temples.

These azure waters were thought to lead to the Mayan Underworld.

Human-made caves excavated to hide a secret society of wealthy pagans.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.