A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

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

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

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

A wall of chewing gum moonlights as collective art.

Only hotel where you can legally launder money.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

This private residence was the template for one of the most beloved television homes of all time.

This turn of the century masterpiece has a mysterious goaty interloper.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Climb inside an iron crystal magnified 165 billion times its normal size.

Theme park featuring miniature replicas of European monuments.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Museum preserving torture methods from the past.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

Quite simply the largest tree in the world (by volume).