The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

Six miles off the coast of Key West, a former military transport ship is now one of the largest artificial reefs in the world.

After a long career, a disastrous sinking, and a half-successful salvage, this Naval vessel-turned-artificial reef ended up exactly where she was supposed to—with a little help from nature.

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

The largest freshwater lake in the Florida Keys.

A tiny, unassuming park in Tampa that belongs to the Republic of Cuba.

The so-called "world's shortest river" is actually a window into a cave.

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

Though nicknamed the “Russian Freighter,” this ship was actually sunk off the coast of Pensacola by the U.S. government in a top-secret operation.

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

For divers and music lovers, the Florida Keys' Underwater Music Festival provides the best of both worlds.

This state park was once an important Native American cermonial center.

Wading through a small lagoon reveals a secret, wild stretch of pristine beach.

A Florida college boasts the world's largest single-site collection of structures designed by Frank Lloyd Wright.

This 140-year-old beacon off the Florida Keys marks the wreck of a Navy ship that once roamed the Caribbean hunting pirates.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

Possibly the world's oldest rug, this Egyptian relic is woven entirely from ancient cat hair and once carried a mummified human foot.

One of the world’s largest and deepest freshwater springs, where mastodons once roamed.

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

Where serial killer Aileen Wuornos drank her last beer.

The only Florida state park with publicly accessible caves.

An abandoned water sports stadium that has become a haven for graffiti and decay.

This shop also boasts some sweet memorabilia from "Willy Wonka and the Chocolate Factory."

An underwater statue of Christ blesses the depths off Key Largo.