The Spitalbastei is Rothenburg's newest, largest, and most impressive fortification. Built in 1537 by Leonhard Weidmann, it features seven gates, two inner courtyards, and a dry moat. The Spitaltor gate welcomes visitors with the inscription 'Pax intrantibus, salus exeuntibus' - 'Peace to those who enter, salvation to those who leave'. This sophisticated defensive stronghold is free to explore.