Museum of the American Gangster

Bars that call themselves speakeasies might be a popular trend in this city, but learn about the seedy, underground crime that made the phenomenon a reality back in the 1920s during Prohibition. This museum, which is housed in a real former speakeasy at 80 St. Mark's Place, exhibits photographs and illustrations of many of the most famous gangsters of the 20th century as well as the weapons used by mafia members and stories about the lives and heists of these criminals.