This mysterious artificial cave has long puzzled New Englanders.

In 1777, two men were killed after being struck by lightning at the same time.

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

An artifact taken from one of America's shortest wars.

Supposed Massachusetts Grave of a pre-Columbus Knight Templar.

This cemetery is home to numerous granite headstones that are works of art unto themselves.

The final resting place of New England's last "vampire."

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

This steamer is known as "The ship that built Cleveland."

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

The oldest still-operating tavern in the United States was once owned by a pirate.

The place where the great marine explorer first learned to work underwater is not where you'd expect.