This American Sycamore was grown from seeds that accompanied the Apollo 14 mission in 1971.

The oldest continuously-operated inn in the United States, once owned by Henry Ford.

This classic red schoolhouse is said to have been where Mary and her little lamb went to school.

America's "second most important bell" is a contentious spoil of the Civil War.

All that remains of the Whittall mansion are the ruins of the formal garden and its pergola, dedicated to the late Matthew J. Whittall by his widow.

This building is more than 250 years old and was built in one of the first towns settled in Massachusetts.

The oldest surviving wood-frame building in North America is still in the family.

This clock tower is all that remains of Bird Hall, constructed by one of the founding families of this Massachusetts town.

One of the largest public collection of historic armored and military vehicles in North America.

In the middle of a New England forest sit the crumbling ruins of World War II-era ammunition storage bunkers.

This stone tower in a small town's graveyard looks as though it would be more at home in a fairy tale.

Once the largest gravity dam in the world.

One of the oldest baseball fields in continuous use has been hosting games since 1878.

Mary Rowlandson's kidnapping ordeal became one of the nation's first best-selling books.

The gravestone of the man who designed the plastic pink flamingo is adorned with his most famous creation.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.