The first declared National Monument in the United States.

Its buzzing collection honors vibrator history.

A museum befitting the city responsible for supplying the majority of the world's LSD.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

Rainbow-hued local gem in Venice.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Paris' linguistic guide to the international language of, yes, love.

Eighteen miniature death-scene dioramas.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

This shop for all your super spy needs hides an educational secret.

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

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

Home of an evil witch famous within southern folklore.

Medicinal spa created with the discharge from a geothermal energy plant.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

The oldest stone house in Paris was built by its most famous alchemist.

A museum and shop on Bourbon Street located in the French Quarter.

One man's homage to the sun continues to grow like a glass fractal.

A semi-scholarly approach to sex.

A beautiful Victorian-era cemetery, complete with a miniature village.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Resting place of Hollywood's immortals is also site of summer film screenings.

A technicolor place of worship for Elevationists.