A crumbling hospital from the 1850s on Roosevelt Island.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

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

Visit the monolithic tomb of America's most famous general.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.

A bizarre roadside attraction and the first instance of miniature golf in the world.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

A chessmaster's dream destination.

There must be a pun in this haystack somewhere...

A Manhattan office building is home to the world’s largest chess board.

Hundreds of antique bank vault locks on display in New York City.

Commemorating the spot where the famous scientist fed his pigeons.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Salute the leader of the proletariat.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

Unrepaired walls from a 1920 anarchist bomb attack.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The modern birthplace of Irish freedom.