A beautiful maze marks where three countries meet.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

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

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

An antique curios dealer and hybrid taxidermist.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

This museum houses an imposing skeleton army comprised of creatures great and small.

A museum of magic with a Sadist past.

France's national museum of scientific and industrial instruments.

A haunting collection of the vanished and disappearing natural world.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

A museum of carnival attractions where you are invited to ride the rides.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

An artsy hidden staircase leads to breathtaking views of San Francisco.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

A huge musical instrument played by the ocean.

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

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."