Erosion and time have created a naturally-formed water park.

This massive redwood tree has a hole in the base big enough to drive through.

A vaudeville performer mounted this hollowed-out redwood log onto the chassis of a truck, and toured the country spreading a message of conservation.

The haunting ruins of Jack London's dream house.

The world's first motel is now an administrative building for an apple farm.

A deserted hodgepodge of experimental structures designed by nearby university students.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

A house built from trash known as the poor man's Hearst Castle.

International delicatessen has been owned and operated by the same family for more than 110 years.

An abandoned relic of the city's failed experiment with below ground transit.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

This institution celebrates the happy accidents of uncommon sticktoitiveness.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.