Outposts of this restaurant chain were shaped like jaunty chapeaus.

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.

A cobblestone alley with an interesting past.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Where a great scandal unfolded with a famous female revivalist at its center.

Steinbeck's old stomping grounds, immortalized in Cannery Row.

Fake rail crossings mark the site of an influential doctor's demise.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

Because there's no place like home.

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

The wooden airship was the largest flying boat ever built.

Hidden in a hotel parking lot is a strange historical plaque erected by an obscure fraternal society.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

Medical and zoological curiosities for sale.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A Masterpiece with a Tragic History.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

An alley covered with 20 years of bubble gum.

A collection of 20th-century automata, penny arcade games, and musical contraptions.