This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

Nestled between a college and a golf course, the garden is home to more than 2,500 rhododendrons.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

This black shoreline is made up of exploded lava particles.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

Come for the speed, leave in love with the desert.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

A museum dedicated exclusively to the lore and history of ouija boards.

Shop of curiosities with a dinosaur museum tucked in its basement.

A peaceful, unique botanical garden complete with waterfalls, mini islands, and swans.

Like stepping into a spooky fairy-tale, this shop carries the dark ideas of artists and other makers.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

The unbelievably opulent home built for an infamous newspaperman.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

Colorado's only true geyser is hidden within the San Juan National Forest.

A massive sea stack famous for its appearance in The Goonies.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

This ancient octopus-like tree was saved from destruction thanks to shady reporting.