One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

A medical facility that has been kept frozen in time.

A monument to the King's final show, complete with a time capsule.

The secret city built by the Manhattan Project.

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.

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

When Motown musicians came to Nashville in the 1960s they stayed at this historic record-pressing company because hotels wouldn't host them.

For decades these polar bears have roamed all around a Nashville neighborhood.

The alley connecting two of country music’s most historic venues has a rich history of its own.

An ode to "The Queen of Appalachia."

John Hendrix predicted the creation of the "Secret City" built as part of the Manhattan Project.

Country fans may flock to Nashville's music scene, but this Appalachian town is where the genre was born.

One street divides a single town that stands in two U.S. states.

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

In the hometown of the Grand Ole Opry star is a larger-than-life memorial statue made entirely from chicken wire.

An engraved boulder marks the spot where Patsy Cline's life ended in a plane crash.

This historic train station has been converted to a locomotive themed hotel.

Elvis's own personal tropical hideaway.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.