The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

Memorializing an American tragedy of massive proportions.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

This dramatic rail curve was once the target of a failed Nazi attack.

Steepest flood safety railway in the entire world.

A peaceful international sculpture garden in upstate New York.

Now the final resting place of prominent artists and musicians, it was originally founded to separate the rich from the poor in death.

An abandoned dollhouse factory.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

New York City's smallest piece of private property.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Belly up to the bar in Cowtown, don't forget to buy some boots.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

A tribute to the couples who brave long periods of separation during wartime.

All that remains of this Massachusetts town, demolished in the name of progress, is a stone marker.

A rock outcropping left by a glacier that made itself useful throughout the centuries.

The homestead of American patriot John Adams.

The world's largest piece of copyrighted artwork.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

The site of Paul Revere's historic two lantern warning.