The Bara Imambara of Lucknow is one of the most famous monuments in the city. The Imambara is primarily known for its incredible maze, known as Bhul Bhulaiya locally, which is located on the upper floor of the monument. It is said that there are 1024 ways to get inside the maze but only 2 to come out.
Also known as Asfi Imambara, after the name of the Nawab of Lucknow who got it constructed, it is an important place of worship for the Muslims who come here every year to celebrate the religious festival of Muharram. Said to be the world's largest structure that is unsupported by beams, Bara Imambara is considered a marvel of engineering and a fine specimen of Mughal architecture.
The Imambara has a unique style of construction. Moreover, no wood or metal has been used in the construction of this mosque. One can also have a view of the grave of Nawab Asaf-Ud-Dowlah and his crown, which is kept in the central hall, which is said to be the largest vaulted chamber in the world.