A large stone map of Arkansas awaits visitors to its highest point.

The site of William McKinley's tragic assassination is only marked by an underwhelming boulder.

Home of a 28-foot tall stalagmite known as the War Club.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

A decaying building marks the site associated with Emmett Till's brutal 1955 murder, which helped sparking the civil rights movement.

A museum in Mississippi celebrates the history of Coca-Cola and the man who brought it to the masses.

This ancient settlement contains some of the largest earthen mounds in North America.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

A collection of outdoor art by renowned muralist Robert Dafford depicts the history of a flooded city.

A full-scale replica of a 1774 colonial settlement in Kentucky.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

The site of the notorious Camp Sumter Prison is now a peaceful memorial.

A thriving Black community was destroyed by an angry white mob at this site in 1923.

St. Augustine's record-setting narrow street was designed to protect against pirates.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

This now-deactivated naval base defended the Florida coast for centuries.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

A building so large that it has its own weather.

I Street Bridge is the heaviest swinging center bridge in the United States.

The California capital city once stood 10 feet lower than it does today.

The first KFC is on the National Register of Historic Places.

Art Deco stylings conceal the true nature of this bridge.