In an effort to escape the horrors of slavery, one man mailed himself to freedom.

Tucked away in the forests of North Florida resides a 19th-century lighthouse.

This phone booth-sized municipal building has been a piece of police property for more than half a century.

This historic oak tree has been around for over 300 years and might last for 300 more so long as it doesn't fall apart first.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

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

A former hospital is now home to a pizza parlor and maybe a few ghosts.

A local landmark with generations of spraypainted messages, and more being added each day.

Florida’s half-sized replica of the Vietnam Veterans Wall.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

Abandoned silver mine strewn with wrecked and twisted structures.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

World's largest Christmas store.

A building so large that it has its own weather.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

Where manatees are the snowbird vacationers in these balmy Florida springs.

A humid oasis combines recreation with exploration in a unique underwater cavern.

The world's longest known cave system.

There just so happens to be a court even higher than the U.S Supreme Court: a basketball court in the building itself.