A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

Former utopian colony based on the belief that the universe exists in a hollow sphere.

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

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

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

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

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

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

The only ancient owl carving found east of the Mississippi.

A replica of one of the more than 15,000 civilian lookout towers that lined the U.S. coast during World War II.

Strange beasts lurking in a garden are all that remain of a quirky, short-lived theme park.

Mariners once used this prehistoric landfill as a navigational landmark.

Where serial killer Aileen Wuornos drank her last beer.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

These mysterious ruins are hidden amid this sleepy coastal city.

Believed to be haunted, this old cemetery is beautifully adorned with Spanish moss hanging from the trees.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

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

Florida castle built with aluminum printing plates.

A Circus legend leaves an unexpected endowment.

A luxuriant botanical garden below sea level.

History is hiding at the Morean Center for Clay.

One of the camera company's former manufacturing buildings is now a museum dedicated to its history.

One of the largest pieces of scientific equipment ever carried on a NASA space shuttle sits in a Chicago alley.