Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The prototype for all Nazi concentration camps.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

The secret city built by the Manhattan Project.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

The bad-ass ride of a soul legend, housed in one of the world's few soul museums.

Home to drunken tower-climbing goats... seriously.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

One of the last Depression-era bandshells still standing was the site of Elvis Presley’s first live concert.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

Sid Vicious famously punched a hole in the wall of this iconic music venue.

An acoustic anomaly with a mysterious cause.

Songwriter Leon Russell transformed this church into a recording studio used by many legendary musicians.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.

The only nuclear weapon assembly and disassembly plant in the U.S.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

Belly up to the bar in Cowtown, don't forget to buy some boots.

A modernist landscape of water and sci-fi concrete.