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

The secret city built by the Manhattan Project.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

A museum and shop on Bourbon Street located in the French Quarter.

A 70-foot replica of the famed Eiffel Tower.

See massive fossils that are over 200 million years old in northeastern Arizona.

Legends surround this jagged rock formation in the New Mexico desert.

This massive oak tree has ties to the first native tribes of the region and the founders of Texas.

An unknown Hall of Fame in Jackson, Tennessee.

Though Johnson is not actually buried here, an Atlanta-based band sponsored a headstone for him.

Contrary to popular belief, this memorial does not actually claim to mark the bluesman's grave.

The body of an unidentified woman, visible through a glass coffin, was discovered by accident.

A bright little alley in La Boca is a part of tango history.

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

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

A Christian monastery stands on what was once a holy Incan temple.

One of Mexico's least-visited archaeological sites is tucked away inside a theme park.

A small collection of iguana-infested ruins hides amid Cancún's bustling hotel zone.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

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

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.