Eclectic collection of dark and macabre antiques.

This 19th century hydroelectric powerhouse was the first of its kind.

This 19th century train workshop is a treasure trove of railroad history.

The California capital city once stood 10 feet lower than it does today.

Where the first "expert riders, willing to risk death daily" for the Pony Express were recruited.

A replica of the first public theater built in California.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

A popular tourist cave with a dark past.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

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

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.

A second generation sun-powered marvel lights up the night.

Legendary frontman of the Doors looms in this giant mural by famed Venice muralist, Rip Cronk.

This California estate was either haunted by ghosts or the Marx brothers.

A free library to stumble across, one of many placed worldwide if you know where to look.

Sports history, made in the Arroyo Seco.

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

Ingenious bakery opens up the first Cupcake ATM at their flagship location in Beverly Hills.

The dramatic upward-curving roof is one of the most iconic examples of Googie architecture that still stands today.

Stroll the grounds built by murder, suicide, and dirty oil money at one of Hollywood's most filmed mansions.

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

An informal walk of fame in front of a Hollywood office building remembers a comedic great and his associates.

Two plaques commemorate the site of Shakespeare's first theatre.