Connecticut grave of the woman responsible for the Winchester Mystery House in California.

A monument to the first person to sail around the world solo, nowhere close to where he was born, set sail, or landed.

A castle on a hill once named "the most beautiful high school in Massachusetts."

The sea urchin sculpture is an unusual commemoration of a New England town's seafaring history.

For 20 years, this whale skeleton has been slowly dripping oil on the floor of the museum where it hangs.

This stunning waterfall is the backdrop to a site that has seen continuous human habitation for 250,000 years.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The hero of the women's suffrage movement birth home is now a museum dedicated to her legacy.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

One of the largest trees of its kind in California.

Lemon Grove, California is known for its giant lemon...and mummified bodies.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

It's not quite as old as its Roman appearance suggests, but this piece of infrastructure served Guatemala City for centuries.

The last remaining predreadnought battleship in the world has been a museum for nearly a century.

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

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

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

These roaring primates were considered a divine creature in the cosmology of the Maya.

Monkeys inhabit the lush forest surrounding ancient Mayan ruins once considered sacred.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.