The press that first printed the Book of Mormon.

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.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Washington's iconic carousel has a nice piece of Civil Rights history.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Decades before the scandal, this staircase on the river was a literal "water gate."

This train station inspired the name of a 1970's rock band and provided the backdrop for their album cover.

Hear, smell, see, taste, and touch history at this immersive Civil War hospital.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

This former Cold War missile control site played an important role in the creation of GPS.

An out-of-place Air Force radar dome is all that denotes this park as a former missile launch site.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

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

Berkeley Springs State Park boasts the nation's only monument commemorating presidential bathing.

A giant time capsule not scheduled to be cored until 2040.

A creek tumbles over a series of step-like rocks to create this scenic water feature.