A spiritual vortex among the red rocks in Sedona.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

Guarded by the Angel of Grief, the Stanford family tomb attracts an odd mix of halloween revelry and somber contemplation.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

If you are looking for a used Russian battery, Chinese Ham Radio or other electronic oddities this Flea Market is a good place to start.

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

A pier that used to act as a busy ferry dock is now a decaying favorite of local fisherman and urban artists.

An amazing collection of fantastic reptiles, amphibians, spiders, and insects.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

This subtle Berkeley paving stone actually marks off a lawless tube of air that extends into space.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

An overlooked and unassuming engineering marvel.

This shop specializes in oddities and Victorian-inspired wonders.

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

San Francisco's newly reopened hands-on science museum.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."