The Bara Imambara complex is a husayniyya located in Lucknow, India, built by the nawàbdi Awadh, Asaf-ud-Daula in 1784. It is also called the Asambhi Imambara named after the mosque located near the building. Bara means great and the imambara is a Shiite temple for the celebration of Muharram. Bara Imambara is among the largest buildings in Lucknow. construction began in 1784, a year of which a violent famine reduced the population to starvation; one of Asaf-ud-Daula's goals was to provide employment to those affected by famine. About 20 000 people are said to have been involved in the construction: the population built the building during the day, while the nobles destroyed it at night, to prolong the times. The construction was completed in 1791. It is estimated that the cost was between half a million and a million rupees. Even after completion, the nawab costs annually between 400 000 and 500 000 rupees to maintain and embellish the decorations. The complex also includes the Asafi mosque, bhul-bhulaiya (the labyrinth), and bowli, a stepped pool with running water. Two entrances lead to the main room. The architecture of the complex reflects the maturation of the Mughal architecture, one of the last examples of buildings without European influences and without the use of iron. The main part of the husayniyya consists of a large central hall with a vaulted ceiling containing the tomb of Asaf-ud-Daula. 50 meters long and 16 wide, it is over 15 meters high and has no support column. Eight rooms surround the main space; these have different heights, giving the upper floor the possibility of being built as a three-dimensional maze called Bhulbhulaya, with passages that connect different environments through 489 identical doors. Considered a rather popular attraction, the maze was not intentionally built, but was a consequence of the need to bear the weight of the structure, built on marshy land. Asaf-ud-Daula also erected Rumi Darwaza, 18 meters high, just outside the complex. This portal, embellished with sumptuous decorations, constituted the main entrance of the husayniyya. The architecture of the Amambara has been selected through a competition between various proposals of different architects. The winner was Kifayatullah, an architect from Delhi, whose body lies buried in the main room of the Amambara. The fact that the client and the architect of the complex are buried together creates a unique event.