This monument pays tribute to the city’s contribution to basketball history.

The final resting place of one of Thomas Jefferson's formerly enslaved sons.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

Comprised of Spanish war cannons, this sculpture once graced the bow of a WWI warship.

When flour explodes, it's not a pretty sight.

The boulder on which Alexander Hamilton laid his head after a deadly duel can still be visited on the New Jersey coast.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A basement pool hall is the front for some of the best Dominican food in New York City.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

The first and only carousel with a lineup entirely of insects.