This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Bootleggers ran booze beneath this building before (and after) Route 66 appeared beside it.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

Fans of the spicy bright-red sauce can tour where it's made.

A relic from a forgotten bakery chain still spins atop a diner.

The American Home, Re-imagined.

This 1920s masterpiece of French Quarter architecture hides a secret tunnel used by Albert Einstein.

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

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

Former 1954 Del Mar Train Station now serves signature cocktails and delightful culinary treats, and still operates as a Metro stop.

Originally the home of chewing gum mogul William Wrigely Jr, it is now the official offices of the Tournament of Roses.

Pasadena glamour turned government issue.

A California city claims to be the home of a fast-food classic.

A Masterpiece with a Tragic History.

A repository of Pasadena history.

A stellar example of Art & Crafts architecture, and a movie set to boot.

A British pub embodies the spirit of a California legend.

A newspaper building that made radio history.

Two groundbreaking brothers from Pasadena.

One of Hollywood’s favorite government buildings.

Pasadena’s Stonehenge.

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