The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

This spectacular track has run continuously since 1882.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

This naturally-sourced hot spring is now home to a clothing-optional resort.

A technicolor place of worship for Elevationists.

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

Happy harbor seals frolic and snooze on this warm, sandy stretch of coast.

A hidden world of exotic succulents and cacti.

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

From Japan to Italy, this California park explores the world's cultures through their gardens.

The neighborhood shop is a sort of tiny cactus museum full of exotic specimens you can take home.

Exotic feline breeding compound and conservation center.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

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

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

Medical and zoological curiosities for sale.

A winding path built in secret on the edge of the continent.

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

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

World's largest collection of serial killer artwork and other macabre exhibits.

An artsy hidden staircase leads to breathtaking views of San Francisco.

This quirky Arkansas wax museum does not shy away from the macabre and the grotesque.