This underground oasis is one of North America’s most fascinating prehistoric places—and you can scuba dive in it.

Discover diverse aquatic life and befriend resident turtles at this private diving grotto in north Florida.

Public works and national defense project meant to carve a canal all the way across the state of Florida.

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

In this Florida couple's cottage, nearly every surface—inside and out—is covered in mosaic artwork.

Fascinating military history, awe-inspiring wildlife encounters, and endless outdoor adventures draw people to this sprawling park.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

In Florida, these naughty monkeys live on their own mini-monkey Alcatraz.

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

Ruins of an old sugar mill sitting quietly next to a park in rural Florida.

A much more welcome kind of snowbird vacationer, manatees camp out in these springs every winter.

The abandoned bathhouse is all that remains of the hot springs considered Florida's original tourist attraction.

This museum honors the composer of “Swannee Ribber.”

This abandoned bridge is now a favorite haunt for graffiti artists.

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

A giant desert bird that once swung music fans at Coachella now has a home in a nearby traffic circle.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

Dating back to the 1800s, two imposing buildings in Michigan have had countless transformations over the years.

Five restored historic road bridges in a park along the Kalamazoo River.

A concrete block embedded with thousands of pulled teeth was created by a local dentist to memorialize his dog.

A cemetery where many of those buried had a flair for the dramatics.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

The world's largest collection of autographed baseballs can be found at the St. Petersburg Museum of History.

From printing money to live music, this Beaux-Arts style building has had many identities over the last century.