Three Crosses Square

This guide to Three Crosses Square in Warsaw starts with the puzzle of its name, twin gilded crosses from an eighteenth-century pilgrim route plus a stone saint holding a third, then turns to an 1815 plan for a triumphal arch that Tsar Alexander the First redirected into a church instead. You'll hear how architect Piotr Aigner solved the problem of a domed rotunda standing in the open, and how a later architect decided the plain design needed towers borrowed from St Peter's in Rome. Notice which parts of that later addition survived the war and which didn't.