A medieval castle in the middle of rural Texas.

A popular swimming hole that hides one of America's most deadly diving spots.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

Bat house that has only ever housed bat for one night; they all flew away and never came back.

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.

These ruins are all that remain of what a Spanish barrack that likely housed a quarry overseer, masons, and stone cutters involved in the construction of the Castillo de San Marco.

This aluminum airplane pays homage to the Flying Tigers of World War II.

No one knows how or why this painting appeared to produce crystallized tears.

This small museum is dedicated to the history of Havana and Florida's once-booming tobacco industry.

This facility, now a museum, once housed and trained U.S. Army Air Force pilots who flew during the Allied invasion of Normandy.

Though it may look like it’s missing its outer shell, this skeletal cast-iron tower was built to withstand wind and waves.

An aviation relic that made coast-to-coast travel possible.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

These mysterious ruins are hidden amid this sleepy coastal city.

This 15-foot former Johnny Appleseed has given up his apples for donuts and coffee.

This small museum concentrates on the juicy history of orange production in Florida.

History is hiding at the Morean Center for Clay.

This small Key West museum is packed with dozens of artifacts that illustrate the life of the iconic playwright.

A lone gunner's station is all that remains of a replica Spanish Fort in Florida.

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

Get up close with some alligators at this roadside farm attraction.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.