The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

The house where John Wilkes Booth conspired with his co-conspirators.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

A museum has some wedding cake dating to the Teddy Roosevelt administration, and some bacon from FDR's.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

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.

The rocks in this arid basin leave trails of movement behind them.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

One of America's most historic homes also holds a startling literary legacy.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

The resting place of a Civil War celebrity's amputated limb.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

This historic California cemetery holds the bodies of veterans of both the Civil War and the Donner Party.

Visit the monolithic tomb of America's most famous general.

Try not to get slimed in Tribeca.