The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

Concrete crosses scattered across the Arizona scrubland which were used to align spy satellites.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A super-sized promotional trick that is now a D.C. landmark.

17,400 lbs., 12 feet in diameter, and 29 years in the making.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

A vast array of tropical plants collected by a vacationing couple.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

The only presidential monument to display a late POTUS's actual casket.

The wooden octagon in which Huckleberry Finn and A Connecticut Yankee were born can still be visited in upstate New York.

A cemetery housing wild west legends in South Dakota.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

A fitting attraction for the corn capital of the world.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

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