The site of William McKinley's tragic assassination is only marked by an underwhelming boulder.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

Lie in a hammock where George Washington stood.

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

An Irish Memorial commemorating those who perished due to potato blight.

First planned industrial community in the United States.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

Dr Barnes' $25 billion private collection of art and arboretum.

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

A museum dedicated to exhibiting remarkable outsider art.

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

The land is home to swimming ponies and a legendary 18th-century treasure.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones’ locker.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

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

Museum houses an impressive display of the origin and artistry from the now-quaint invention's history.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.