This giant temperature attraction created some giant electric bills.

The decaying adobe remains of an old homestead are just off the beaten path in Joshua Tree National Park.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

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

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

The ghost town that ended up on Ebay.

An inconspicuous footbridge beloved by San Diego locals.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

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

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

A controversial memorial at the place where Captain Cook met his violent end.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

This legendary urban waterfall creates a dazzling display of rainbows.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

A beach made of semi-precious green sand on the Big Island of Hawai'i.