Step inside Lucy, the world's largest "elephant."

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

The world's largest collection of the world's largest objects is in one small Illinois town.

A museum packed with instruments, lyrics, and other mementos of the American folk icon.

A museum honoring Oklahoma military service, where you can look into Hitler's mirror and see a Mickey Mouse gas mask.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

Dramatic river bend surrounds a natural red-rocked pedestal.

The surprising home of the iconic Santa Monica Pier Ferris Wheel.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

Home of a 28-foot tall stalagmite known as the War Club.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

These medicine cabinet staples are part of the museum's collection of everyday objects.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

A daily replay of the experiment that proved the rotation of the Earth.

This elaborate towering structure was once famed for its revolutionary height.

Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

World War II bunker still standing on the New Jersey beach.

One of only two remaining Victorian-era greenhouses in New York.

A farm in New Jersey grew a most unusual crop for AT&T's testing purposes.

The last slot car racing arcade in Brooklyn is keeping the dream of speedy little autos alive.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.