A chance to sleep among the firs and pines of the Oregon forest.

Treehouse motel and treehouse-building school.

A carnivorous plant paradise in a serpentine bog.

This extinct shield volcano is the lightning rod of the Cascades.

The tallest bridge in California was constructed for a project that was eventually cancelled.

A little-known, but surprisingly large waterfall on the Little Truckee River in the northern Sierra Nevada.

Decor at “Nevada’s Oldest Thirst Parlor” includes Raquel Welch's brassiere hanging from a stuffed moose head.

This historic estate on the east shore of Lake Tahoe was home to an eccentric millionaire (and his pet elephant, Mingo).

A breathtaking 19th-century trail overlooks Lake Tahoe.

Secret Manor, a house full of legends, the least of which is the haunting of long-deceased ladies of pleasure.

Along the Outback Scenic Byway, adjacent to hot springs, this human-made geothermal feature takes unexplained breaks.

This mother-daughter run curiosities shop is a beautifully odd mix of taxidermy and exotic plants.

An iconic 1960s theater with a Buckminster Fuller-style geodesic dome.

An eccentric millionaire's personal curio collection includes at least one shrunken head.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Nationwide network of co-ownership underground catastrophe shelters.

A wondrous place to watch a special flower bloom.

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

Artist Jack Pierson made this surreal sculpture in honor of Wonder Valley, a countercultural community on edge of civilization.

Nestled in Coachella Valley, this museum transports guests from the Mesozoic Era, to the land of Egyptian kings.

A black and white painted wall creates an optical illusion in the California desert.

The Hopi-style structure was built by the man who discovered Desert Hot Springs' famous mineral water.

Contemporary art inspired by natural history and science drawing on ancient techniques in a modern world.

Historic house-museum dedicated to the revolutionary gay graphic artist Tom of Finland.