This Florida sinkhole hides a rainforest-like micro-environment in its depths.

A sprawling maze of used books piled from floor to ceiling.

North Central Florida's largest flea market and a weekend roadtripper's dream.

These mysterious ruins are hidden amid this sleepy coastal city.

A local road runs around a memorial to a teenager who died in 1860.

One of the largest Native American shell middens stands 30 feet tall.

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.

Measuring approximately 200 feet long, Swampy is the world's largest alligator-shaped building.

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.

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

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.