Two pillars set 10 paces apart commemorate the "last notable American duel."

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

The miraculous hydrant that saved the Mission District in 1906.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

An essential stop before plundering, BYO Cutlass.

Olfactory delights in San Francisco's Botanical Gardens.

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

One of the largest Marian shrines on the West Coast stands rather unexpectedly in Silicon Valley.

Home to the "Circus" trees created by Axel Erlandson.

This concrete ship has had four careers - World War I tanker, floating amusement park, fishing pier, and artificial reef.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

An extensive collection of ancient Egyptian artifacts and mummies.

The headquarters of a secretive order is also a beautifully-designed park.

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

The rest of him lived another 61 years and was buried elsewhere.