Bada Imambada, Lucknow, Uttar Pradesh India

The Bada Imambada or Asafi Imambada was built by Nawab Asaf-ul-Daula in 1784 as a relief work during the terrible famine that year. the interior vaulted hall which is 162 feet in length, 53 feet in width and 50 feet in height, is said to be one of the largest apartments of its kind in the world. From the outside, a staircase leads to a series of artfully designed labyrinths (bhoolbhulaiyan) where it is very easy to get lost.