More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

A statue honoring 44 continuous years of greeting passing ships.

An eerie smiling woman looms above the granite tombstones.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

"X" marks the spot of an echo chamber in the middle of a plaza.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

This two-room shotgun shack in Tupelo is the birthplace of a King.

The picturesque southern city served as the zombie-filled town of Woodbury in 'The Walking Dead.'

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

The secret city built by the Manhattan Project.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

This elaborate towering structure was once famed for its revolutionary height.

World's first "penitentiary," meant to be humane, drove men insane.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

One Confederate statue that accurately reflects the ugliness of its subject.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

The first declared National Monument in the United States.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.