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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A tiny survivor of the Donner Party disaster.

A massive volcanic plug is now a protected area that hosts a number of bird species.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

The largest source of fossilized insects anywhere.

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

A downtown park built on top of unclaimed graves.

Lighthouse-cum-columbarium where "Nor'easters" and grandma go to die.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A vertically floating hemlock controls the waves and weather at Crater Lake.

Experience a charming 1930's version of "infotainment."

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

The final resting place of a space program monolith.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

America's most famous piece of self-built architecture.

Oldest building in California still in use.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.