The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Formerly secret, precariously perched boulders.

The trunks of 3,000 year-old trees lurk beneath the surface of this crystal clear lake in Oregon.

Rushing water plunges over a 100-foot drop created by an ancient lava flow at this majestic waterfall.

While it is not equipped to peer into outer space this observatory looks like it was built on the moon.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

Approximately 50,000 gallons of water gush from these springs, creating the Metolius River.

A sprawling cave network created by a lone lava tube.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

The longest continuous lava tube in Oregon.

The world's last remaining store of its kind.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

This Pringle-shaped ledge makes for the perfect photo op.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

Dive bar built out of the remains of a whaling ship.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

One of the last free public hot springs is decorated with hippie art.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

The abandoned personal amusement park of the King of Pop.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

The ghost town that ended up on Ebay.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Canyon walls shrouded in ferns.