The FDNY responded heavy this morning to a fire at the Happy Valley Spa on the second floor of a five-story building at 31 West 46th Street close to 5th Avenue. More than a dozen firetrucks & ambulances rushed to the blaze after it was called in @ 10:38AM. Three men were rescued from the roof & one firefighter was taken away on a stretcher but appeared to be okay. Hit the jump to find out more. Amanda Mullen