Pilgrim's Tower was the highest tower in Jordan College. It was made up of a series of rooms, of which several of the top ones were used by George Papadimitriou. There were a set of steep stairs which ran through the tower. One of the uppermost rooms were used by a group of Oakley Street members for a meeting. Lyra Belacqua was not tall enough to climb onto the skylight opening onto Pilgrim's Tower..