A nursery specializing in strange and beautiful succulents and cacti.

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

The famous blue house from the classic horror film "Halloween" is now a local landmark.

L.A.'s oldest operating bowling alley is a beautifully restored homage to its speakeasy days.

One of Los Angeles's first murals once vibrantly depicted the dangers of United States imperialism.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

Inky sludge oozes to the surface of this beach thanks to a rare natural tar seep.

A tribute to those that perished during the American Revolution.

In use from 1742 to 1910, only flat headstones were allowed in this cemetery.

One of the world's oldest continually operating bookstores.

California's largest steel arch bridge.

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

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

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

A Community Cornerstone.

The world's first disc golf course has the Jet Propulsion Laboratory as a neighbor.

The beloved dining spot stands at the cross-section of Hollywood and the Old West.

View the California coastline (and the home of Barbara Streisand) inch by inch with stunning, government-sanctioned aerial photography.

A strange mishmash of ruins and abandoned structures hint at the park's many lives.

What was once a vast naval cemetery is now home to nesting birds and pollinating bees.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

"X" marks the spot of an echo chamber in the middle of a plaza.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.