The most isolated mailbox in America lets desert travelers record their passing.

Dentist's hated concrete colossi are now beloved icons of the community.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

The artwork that Italians felt California didn't deserve.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.

This former stomping grounds of the most eminent astronomers of the early 20th century.

A promotional sun clock on the site of San Francisco's great raceway.

The ruins of the castle that chemicals built.

9,000 square feet of vintage and modern mechanical toys, dioramas & sideshow curiosities.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

A lighthouse built to save lives that took quite a few with its treacherous location.

An unreal vintage shop that wears its dadaist influence on its zombie fish.

A creepy steel gremlin has protected the Bay Bridge since 1989.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

The mysterious round rocks of Schooner Gulch.

Erroneously called the world's tallest flagpole, this landmark is devoted to "good neighborliness."

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

Fascinating museum dedicated to the under-appreciated medical history of urology features some wince-inducing devices.

27-room home built with the fortune of a sugar magnate.

The only theatre in the world constructed specifically for sound movement.

Its buzzing collection honors vibrator history.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.