The simple auditorium that launched a pop icon's career into the stratosphere.

Two groundbreaking brothers from Pasadena.

One of Hollywood’s favorite government buildings.

"The Star Factory" cranked out Hollywood stars like nobody's business.

Colorado Boulevard’s historic bookstore, operating since the bustling city of Pasadena was merely some orange groves and a few ostrich farms.

This public baseball field is a beloved remainder from of one of the most historic stadiums in the country.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

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

Most famous work of one of Frank Lloyd Wright's sons.

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

This Chase branch is an homage to Old Hollywood.

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 decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

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

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

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

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

The private clubhouse for the members of the Academy of Magical Arts.

Venue for strange sideshow displays and musical acts.

Wild West history in Hollywood style.

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

These two monoliths have stood at the entrance to the neighborhood since the days it was called "Hollywoodland."

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.