Location of a reliquary containing bone fragments of 18 saints.

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

This rustic old building is said to be the most photographed barn in America.

Native Americans built this circle of stones, which was used to predict astronomical events.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

One man's ambition created this psychedelic log home.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

When ecosystems collide in the arid Southwest.

A miniature baseball stadium honoring Johnny Rosenblatt Stadium, home of the College World Series from 1950-2010.

This once rural mansion now sits in the heart of the city.

Town of spiritualists and mediums in Florida.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

This glass-stain Mary attracted thousands of pilgrims until her head was shattered by a vandal with a slingshot.

Near the ruins of a Civil War coastal fortress lies the only known African refugee cemetery in the United States.

This small Key West museum is packed with dozens of artifacts that illustrate the life of the iconic playwright.

The highway's southernmost spot is a beloved local attraction.

Visitors are welcome to enter this lush Key West sanctuary to entertain its plethora of rescued parrots.

Intertwined, interspecies trees which locals believe can grant boons to lovers.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

An eerie smiling woman looms above the granite tombstones.