Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

An Australian lake whose pink hue defies scientific explanation.

A walk through the historic city center, under the streets of Seattle.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

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

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

An enormous, inside-out glass globe built in 1935.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

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

A bizarre house filled with an astounding array of collections.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

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

Dramatic river bend surrounds a natural red-rocked pedestal.

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

An eerie, derelict amusement park in Berlin.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

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

A psychedelic labyrinth on the San Francisco bay.

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

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.