This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

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

The ghost town that ended up on Ebay.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.

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

The largest drain hole in the world.

In this century-old literary safehouse, print is alive and well.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

Sister store to the Echo Park Time Travel Store.

Most famous work of one of Frank Lloyd Wright's sons.

Explore 10 acres of environmental sculptures.

Visible below the waves are memorials to the city's Gold Rush dead.

This glamorous old building is said to have inspired the Tower of Terror.

This grand mansion has starred in everything from Bones to Buffy.