Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

An alchemist's "magic door" stands in the middle of a Roman park.

Stroll through a wonderland of stupendous moss-covered trees.

A 30-acre garden inspired by the principles of modern physics.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

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

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

A one-of-a-kind collection of a unique medium.

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

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

The sign at the garden gate reads: "These Plants Can Kill."

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

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

A church of bones, decorated with 40,000 human skeletons.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

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

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A UFO-shaped event building originally intended to be a science museum showcasing the future.

The largest 19th century panorama in the world still in-situ.