The site of a gold-digging conquistador's bloody landing in the Americas.

A white oak with property rights.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

Moonbows over Kentucky.

Modeled after the labyrinth in Chartres Cathedral, this small-town Indiana memorial labyrinth sits half a world away.

This freshwater spring fills with 10,000 gallons of water per minute.

The 606 is a decade in the making.

The arboretum whose marshy soil sucked up the dreams of housing developers.

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

Erosion and time have created a naturally-formed water park.

A mysteriously dark cemetery monument fuels stories and legends galore.

A museum within a museum, devoted to history's most questionable medical devices.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A clear blue swimming hole with hidden caves, still unexplored.

A stealthy Apache hideaway that became the haunting site of a mass grave.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Native Americans built this circle of stones, which was used to predict astronomical events.

The largest collection of historical roller skates in the world.