Roadside collection of 65,000 signs.

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

Four-story concrete hotel never opened to customers.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

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

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.

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

The Zalud family experienced a number of tragedies in one decade, giving rise to rumors that the 19th century house is haunted.

A remote crossroads honoring a fallen talent.

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

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Towering basalt columns, a creation of fire and ice.

Open day and night, a church with three pews and Bibles.