At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

This naturally-sourced hot spring is now home to a clothing-optional resort.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

This L.A. fixture has been serving hot dogs out of a giant hot dog since 1946.

This lighthouse has been guiding shipping into the Golden Gate since before the American Civil War.

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.

The lead horse on a Disneyland merry-go-round that is older than the park itself.

An ever-updating collection of retro Americana.

The viewpoint for this attractive, off-the-beaten-path waterfall is reached by a paved, wheelchair-accessible trail.

The second-largest giant sequoia in the world.

800 apricot trees honor Silicon Valley's agricultural history.

Under the shadow of its towering parent tree, a rare specimen of sequoia produces ghostly white leaves.

Hidden inside a gift shop that doubles as a museum, this gargantuan yo-yo can only be operated by crane.

Exquisite irises bloom every spring in this hillside garden.

Try the frozen treat that inspired Arrested Development's famous banana stand.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

The beautiful behemoth is one of the largest trees of its kind in the United States.

This bakery sits on the site of the Black Panther Party's first headquarters.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

This nondescript tunnel has been featured in a number of iconic movies, from “Roger Rabbit” to “Back to the Future.”

These structures were inspired by both Native American shelters as well as, strangely, an ice cream shop.

This Southern Californian Conservation Center is home to singing and howling apes.