This railroad magnate's 19th century tower is more than a little bit out of place in the Nevada desert.

Graffiti, cars, and religion combine to create this jungle of scrap in the Nevada desert.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

A giant Troll lurks under one of Seattle's oldest bridges.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

Multiple waterfalls and several historic CCC buildings anchor this state park in Oregon's Willamette Valley.

1920's mining camp and environmental education center is serving to protect the surrounding forest, one of the last of its kind in the Pacific Northwest.

The second-largest giant sequoia in the world.

This hidden fire lookout offers spectacular views of Sequoia National Park.

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

A 19th-century cabin built into a hollowed-out Sequoia tree.

Four hundred granite steps were built into this massive rock by the National Park Service.

This small shack near the entrance to Sequoia National Park has been in almost continuous operation for the last century.

A water tower shaped like a giant coffee pot looms over a small Swedish village in Central California.

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

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

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

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

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

A bronze replica of half-consumed salt lick honors a quirky town tradition.

During its heyday, 72 one-ton buckets from this dredge bore into the Powder River excavating vast gold deposits.

An out-of-the-way state park in Oregon that features both a picturesque waterfall and the ruins of a hydropower plant.

Post office plaque commemorates local resistance to a cult invasion.

Oregon's unexpected high desert, displaying layers of time in a colorful show.