The hallucinogenic center of the ancient world.

Monasteries on rock pillars, once accessible only by frayed ropes.

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

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

Most-visited and most-photographed slot canyon in the American Southwest.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Canyon walls shrouded in ferns.

The longest living non-clonal organisms on Earth.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

The most alien-looking place on Earth.

A world-class observatory in the California desert.

The fossilized remains of ancient California redwoods.

A gallery of underwater art that can be visited by man and fish alike.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

Delve into a wealth of oddities, antiques, and taxidermy treasures.

A nursery specializing in strange and beautiful succulents and cacti.

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

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A huge musical instrument played by the ocean.

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

Its buzzing collection honors vibrator history.

Exotic feline breeding compound and conservation center.

Haunting and beautiful trees, doomed to die.

The rocks in this arid basin leave trails of movement behind them.