Alabama has a fiberglass Stonehenge. With apologies to Spinal Tap, this one is full-size.

Meet manatees face-to-face at this zoo for native species.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

Rotting dome home spotted near Chapel Hill, North Carolina.

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

Ruins of an American Civil War iron forge still survive today.

The first full-scale tunnel built in America is short but scenic.

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

The small cave that housed Tennessee's "first citizen."

The highest point in Virginia can only be reached by passing through ponies and flowers.

This airfield is home to a number of retired vintage planes in various states of disrepair.

You can climb to the summit of Black Mountain, as long as you sign the waiver.

A secret, rocky playground hidden amongst the plain white beaches of the Florida coast.

This boulder stays on its mountain thanks to a huge chain and on the map due to local legend.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Famous for its bio-luminescent inhabitants, known as "dismalites."

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

Public works and national defense project meant to carve a canal all the way across the state of Florida.

A rusted metal giant pays tribute to Birmingham’s industrial past.

A historic covered bridge, only one of two remaining in North Carolina.

The cruel trial of a 13-year-old boy inspired the creation of this now abandoned reformatory.

This structure among the trees was the result of divine inspiration.

Visit this playground of waterfalls, caves and sinkholes.

All that's left of the quintessential "cabin in the woods."