The Bara Imambara of Lucknow is one of the most famous monuments of the city. Also known as Asfi Imambara, after the name of the Nawab of Lucknow who got it constructed, (It is believed that the construction of this grand building was started in 1785 when a devastating famine had hit Awadh, and the nawab’s objective was to provide employment for people in the region for almost a decade while the famine lasted).it is an important place of worship for the Muslims who come here every year to celebrate the religious festival of Muharram. The Imambara is primarily known for its incredible maze, known as Bhul Bhulaiya locally, which is located on the upper floor of the monument. The Bara Imambara has a unique style of construction. The central hall of Bara Imambara, which is said to be the largest arched hall in the world, measures 50 meters long and goes up to a height of 15 meters. The whole building is made of Lakhanui bricks, which are a bit small in size, and lime plaster. No wood or metal has been used in the construction (Except for the galleries in the interior). The Bara Imambara is worth seeing in its own right, but the unusual labyrinth of corridors on its upper floor (Bhul Bhulaiya) is what steals the show!