This weekend marks the beginning of the coolest ad campaign we’ve seen in New York in quite a while. As of yesterday, and every weekend through the end of the month, patrons of the 2/3 express line in Manhattan will be able to step into an authentic vintage subway train from the 1920’s, as part of a large-scale promotion for the new season of Boardwalk Empire, HBO’s series set in Prohibition-era Atlantic City. From the project organizers: “Originally operated by the Interborough Rapid Transit (IRT) system, the train began service back in 1917 and will once again be operational. Customers who have the opportunity to ride the vintage train will be transported back in time to the Prohibition era with authentic details such as rattan seats, ceiling fans and drop sash windows, as well as a custom branded interior featuring Boardwalk Empire-inspired period artwork.” Sounds pretty awesome to us. Has anyone in NYC taken their old-timey train ride yet? If you have, let us know all the details in the comments!