A long abandoned hospital building on the outskirts of NYC.

The sign at the garden gate reads: "These Plants Can Kill."

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

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

Visit these gentle, bell-bottomed, exquisite equines at the home of North America's first Gypsy Vanner horses.

The ruins of a once massive plantation are now a private residence hidden in the Florida wilderness.

One of only two pod-shaped homes designed by Frank Lloyd Wright.

Like Mardi Gras, only everyone's a pirate.

The culprit who accidentally lit this 3,500-year-old tree on fire stated "I can't believe I burned down a tree older than Jesus."

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

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

An eclectic treasure trove of maritime marvels.

The only Florida state park with publicly accessible caves.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

The world's largest occupied bat houses hold hundreds of thousands of flying mammals.

Former villa and estate of James Deering developed to preserve native tropical forests.

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

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

When you can't get to the Pacific, just go to Florida.

A luxuriant botanical garden below sea level.

Where monkeys run wild and the humans are caged.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

A gleaming white tower in ornate Indian style soars above the low-slung bungalows of north Tampa.