I'm not sure which was more difficult, climbing up the spiral staircase or negotiate the narrow wedge steps on the way down the tower of Great Saint Mary's Church. At any rate, it was worth the climb to see a panoramic view of Cambridge. Here is the westerly view with majestic King's College Chapel on the left, Trinity Hall in the center, Clare College midway back, the University Library in the far background, and Gonville and Caius (pronounced Keys) College court to the right of the Senate House.