Time travel with sweets across history at this research-based candy store.

Endless rows of boxes of paper records line the hallways of the archaic federal facility where guns are traced.

A monument marks the location of the first successful steamboat demonstration.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

Though his role as the inventor of baseball may be up for debate, fans still festoon Doubleday's grave with baseballs.

A gift from Scotland to the United States in memory of the 270 lives lost when Pan Am Flight 103 exploded over Lockerbie due to a terrorist bombing.

Recorded as the first person buried in Arlington Cemetery.

The first memorial dedicated solely to the Black troops who fought for the Union.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

To find the "unicorns of the deep" you've got to go downstairs.

A winding, cliffside stretch of road overlooking the Delaware River.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Metal dinosaurs lurk in a sculpture garden on the outskirts of a popular resort town.

This lakefront cottage was crafted in the 1800s and was once a sanitorium.

An echo chamber with a waterfall wrapped around its base at the Embassy of Canada in Washington, D.C.

Considered by many to be one of the most dangerous highways in Alaska.

Inside this museum, the history of the Walt Disney Family empire is on full display.

Etched into a dry lake bed, this massive directional indicator is accurate without magnets.

A Masterpiece with a Tragic History.

One of Hollywood’s favorite government buildings.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.