These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

One man's ambition created this psychedelic log home.

This museum pays tribute to the Cherokee leader who created a written language for his people.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

At the time of its completion, it was the tallest dam in the world.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

The rockpile was the founding landmark for the town of Gillette, and is now the home of the region's history.

Former utopian colony based on the belief that the universe exists in a hollow sphere.

See massive fossils that are over 200 million years old in northeastern Arizona.

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Profile of a sleeping person 4km long in 250m high cliffs.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

A natural formation that resembles a camel resting in the New Mexico desert.

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

A modernist landscape of water and sci-fi concrete.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Yo, Adrian!

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.