The main shaft measures 5.7 meters per side and is 22.8 meters tall (the shaft is about exactly four times as tall as it is wide).[1]:50 The smaller tower at the top measures 2.9 meters per side and 6.4 meters tall.[3]:50 Inside the minaret is a staircase that wraps around the central core of the tower and leads to the platform at the top of the main shaft, historically allowing the muezzin to ascend to the top for the call to prayer.[3]