The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

New York City's smallest piece of private property.

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

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

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.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.