Machchhi Bhavan, Lucknow, Uttar Pradesh 226003, India
A part of the Bada Imambara or the Asafi Imambada, this is a labyrinth structure inside this monument. The Bada Imambada was built by Asaf- ud- Daulah, the Nawab of Awadh. An imambada is a shrine structure which is usually built by the Shia Muslims for the Azadari purpose. This labyrinth structure was made mainly to confuse enemies if they ever tried to attack the devotees during the time of their prayer.