A hands-on traveling collection of the innovative devices of yesteryear.

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

A museum dedicated to the history and exploration of both popular music and science fiction.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

Hot springs monkey spa in the middle of Hell's Valley.

Enormous lake at the bottom of a unique cave system.

Shop selling 500 flavors of soda has something for everyone.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

A layered tribute to the work of mosaicist Isaiah Zagar.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Try not to get slimed in Tribeca.

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

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

The world's only museum devoted to the wonders of fluorescence.