The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

The beautiful 1920 Pantages Theatre remains hidden just underneath the LA Downtown Jewelry Exchange.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

A cobblestone alley with an interesting past.

Law-protected wreckage serves as a peculiar memorial for an almost forgotten World War II tragedy.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

This infamous prison has a store where you can buy goods crafted by incarcerated people.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

A private home built to resemble the shape of a microscopic creature.

A small medical museum with a recreated doctor's office.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

The hotel room where Janis Joplin tragically died has now become a makeshift shrine to the singer.

With the touch of a button, you can read a randomly selected short story.

A vast city of the dead, where the deceased outnumber the living by more than a million.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

360-degree virtual reality chamber physically immerses scientists into their data.

Abandoned hotel with adjacent lake and golf course.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

The miraculous hydrant that saved the Mission District in 1906.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.