The giant squid's 27-foot-long corpse lies preserved within a Sarasota aquarium.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

Off of the Crawfordville Highway in Florida, nature is taking back this decrepit row of Ford trucks.

The bottle house obsession struck a Florida man in his retirement, and now he can't stop building.

This phone booth-sized municipal building has been a piece of police property for more than half a century.

What better place to take a seat?

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

This mansion turned restaurant was once a pitstop for Al Capone during his travels.

This limestone outcropping was once a ceremonial site for ancient Native Americans.

This tiny 19th-century tunnel was built so a man could move his cows from one field to another.

A key producer of charcoal iron in the early 1800s, the structure still stands today.

This quirky local sculpture is quite literally a fish out of water.

This popular park is home to a sea serpent sculpture that now overshadows the twisted history of its creation.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

Abandoned for 60 years, this submerged bridge was completely forgotten until the lake was drained.

This defunct, fortress-like prison has been the setting for several movies.

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

An abandoned town is hidden in Great Smoky Mountains National Park.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

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