World War II-era Nazi compound nestled in the Santa Monica hills.

This surreptitious shop is only open five hours per week.

Grab a latte at the birthplace of modern American skateboarding.

The Los Angeles flood disaster that took 400 lives and ended the career of William Mulholland.

Giant origami crease patterns engraved in Santa Monica intersections may even be visible from space.

In one Santa Monica parking lot a mushroom cloud made of chains heralds a message of peace.

Perhaps the most unique of any Frank Gehry design for one simple reason: Gehry himself actually lives here.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

Hiding amid the largest camellia collection in the country lies a charming children's maze, donated by a secret admirer.

Quite simply the largest tree in the world (by volume).

Four hundred granite steps were built into this massive rock by the National Park Service.

A ghost town originally established and governed solely by Black Americans seeking a place of their own, free from discrimination.

An antique store houses the last operational diner from the defunct department store chain.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

One street divides a single town that stands in two U.S. states.

Step back in time on this preserved 1800s farm.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

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

The unbelievably opulent home built for an infamous newspaperman.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

An abandoned 1920s-era stretch of cabins now overshadowed by the 66 Motel.

Don't blink or you'll miss it.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

One man's ambition created this psychedelic log home.