The Boston Subway System, also referred to as the “T,” has been running since September 1, 1897. We invite you to enjoy a driving-free vacation at the Mary Prentiss Inn, and we will help you get around Boston & Cambridge stress-free! The Mary Prentiss Inn is located near the Porter Square “T” stop for easy access to downtown Boston, and one direct stop to Harvard Square. So why battle Boston traffic? This package includes weekly unlimited-ride T Passes for a discounted rate!