The top could be reached by means of a helical stairway that surrounded the tower. Up there the priests meditated to become one with the cosmic world. Observations with a view to horoscopy were also made from that look-out post.
Mnara wa Babeli ulikuwa ni sehemu moja ya jengo ambalo lilikuwa ni hekalu ya Marduk. Ulikuwa na sehemu nane ambazo zilikuwa zimejengwa moja juu ya nyingine. Katika kilele chake, kulikuwa na hekalu ndogo iliokuwa na viti maalum na meza ya dhahabu.