This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

This historic church with a connection to "Uncle Sam" is now a fraternity house.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

A 13,000-year-old mastodon skeleton was found during the construction of a 19th-century New York mill.

The small burial plot is located in a mall parking lot.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

Cryptic messages embedded in the New York City sidewalk.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Mysterious 500-year-old tapestries depict a unicorn hunt.

A terrific purveyor of natural history objects and curios.

An upstate New York garage advertises its services by literally putting the automobile above all else.

This sprawling taxidermy collection celebrates the art and history of sport hunting.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

The first American home of the isolated, egalitarian religion has a trove of Shaker architecture and artifacts.

Fossilized sea bottom and lime quarry.

Why have you never heard of the second most popular tourist site in New York?

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

This mouldering abandoned mental hospital was once a center for progressive healing.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."