This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

The highest point in Louisiana, Driskill Mountain at 535 feet above sea level.

This historic general store still operates much as it did in the late 1800s.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

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

The smallest covered bridge in Maryland.

Washed out by the Johnstown Flood in 1889, the surviving portion of the original two-span bridge now resides at Fishing Creek.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

The longest covered bridge in Delaware.

An abandoned gun-funded 19th century utopia.

Now home to hardy plants, these sand and gravel dunes once held back a massive prehistoric lake.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

The schoolhouse where Jesse Merwin, the inspiration for the "The Legend of Sleepy Hollow" character, once taught.

At this farm in upstate New York, the former president plotted his reelection campaign.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

Anna Anderson spent most of her life claiming to be the lost Romanov child Anastasia.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

A field in which God and his son Jesus purportedly appeared to a young farm boy named Joseph Smith.

Golden plates containing what would become the Book of Mormon were believed to be buried on this New York hillside.

This statue commemorates the meeting of the most influential minds of the women’s rights movement.

The final resting place of Harriet Tubman and other famous historical figures.