The classic Atari game's iconic aliens have invaded downtown San Diego.

A hidden courtyard houses early 20th-century plaster masterpieces.

One of the largest trees of its kind in California.

An inconspicuous suburban street corner is the site of San Diego's worst air disaster.

The neighborhood of Eagle Rock is named after a gigantic boulder with a shadowy surprise.

Founded by a high school teacher, this poetry magazine became a center for all things literary.

The last orange grove of the San Fernando Valley is owned and protected by CSU Northridge.

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

From pre-war whiskey cocktails to prohibition-era speakeasy secrecy, this bar has seen it all.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

Nancy Thompson's Home from "A Nightmare on Elm Street."

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

World's oldest operating science fiction and fantasy club, once home to Ray Bradbury and L. Ron Hubbard.

The remains of the first punk club in L.A.

Explore 10 acres of environmental sculptures.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Panorama exhibition hall in old silent theater with a beautiful backyard garden.