This historic graveyard was partially paved over to create a streetcar line.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

Turning night into day in Victorian-era Austin to thwart a serial killer.

One part antique store, one part curiosities hodge-podge.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

A small island hides in plain sight on Austin's Lady Bird Lake.

A high-octane shrine to the greatest Texans who ever lived.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

The abandoned personal amusement park of the King of Pop.

Fourteen curious and controversial white bunnies sit in a circle near Newport Beach City Hall.

This enormous World War II relic is one of the largest wooden structures in the world.

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

This weird abode has inspired everything from the "House on Haunted Hill" to a robot hunter's pad.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

A monument to a one-legged kidnapper, horse thief, and charlatan asks visitors to throw rocks in a pile.

Where there's quartz, there must be gold. Thus is the story of the mines of Julian, and the titillating times of the Gold Rush.

The world’s largest concentrated solar plant generates as many problems as megawatts.

This giant temperature attraction created some giant electric bills.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.