A series of labyrinths in the Nevada desert inspire meditation and calmness.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

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

This giant temperature attraction created some giant electric bills.

The first declared National Monument in the United States.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

This colorful theme park dedicated the official fruit of Maine serves sweet, tasty treats.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

Where beautiful signs live on forever.

This unusually circular centenarian barn became a Route 66 icon.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

This simple, broken column marks the final resting place of one of America's most famous explorers.

An enormous park-like oasis, full of famous Chicagoans' graves.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

Official museum, hall of fame, and repository of the Texas Rangers.

This sanguine boulevard was named after a deadly cowboy bar fight.

This historic tower in the California desert promises visitors a "vortex of good vibes".