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

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

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

Rainbow-hued local gem in Venice.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

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

Towering basalt columns, a creation of fire and ice.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

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

A trash dump made beautiful by nature's power.

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

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

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

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

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

One of the world's largest model railroads is a mind-boggling achievement.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

New Jersey's last historic covered bridge was rebuilt from pieces of the original 19th-century structure.

Mysterious rocks that ring musically when struck.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

A Hawaiian stairway to heaven—that you can't climb.

A unique set of caves that spits waves back out into the ocean.