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

Some of the earliest burial grounds of New York State are to be found hidden away in this quaint town.

At this farm in upstate New York, the former president plotted his reelection campaign.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

Three acres of mythology-inspired sculptures are visible from the highway.

100 massive sculptures in the Hudson River Valley.

Read a book next to a Midtown waterfall.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

An outlandish shoe shaped house built by an eccentric millionaire.

America's first serial killer rests in anonymity.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

A park full of outsider art, created by college students studying outsider art.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

World's first "penitentiary," meant to be humane, drove men insane.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

The Atlantis of Cape Cod reemerges during the lowest of tides.

Final resting place of a pioneering scurvy researcher.

This Cape Cod museum exhibits what it claims is the only authenticated pirate treasure in the world.