An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

A wall of chewing gum moonlights as collective art.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

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

A long-vacant Scottish Rite temple in Hollywood has been converted into an art museum filled with Masonic relics.

An expansive book store, art gallery, and curio shop with wares ranging from tarot cards to novelty socks.

The mall's looks were inspired by the cowboy extras who used to meet up—and cause real trouble—at this Hollywood hub.

A few iconic structures are all that remain of America’s first outdoor shopping mall.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

Large but largely ignored, these 42 life-size Liberty Bell replicas were a peculiar, unexplained feature on the facade of a Macy's department store.

The blinking light atop the iconic landmark has been sending secret messages for decades.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

Pizza joint known for labor-inducing salad dressing.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

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

A beloved carnival gets a modern makeover in Los Angeles.

This opulent hotel has been visited by Spider-Man, Charlie's Angels, and the Ghostbusters.

Dozens of feral felines rule a segment of Hollywood's only graveyard.

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.