Bada Imambara is a grand historical monument located in Lucknow, India. Built in 1784 by the Nawab of Awadh, Asaf-ud-Daula, it served as a place for the poor during a famine. The complex features a large central hall, which is one of the largest arched constructions without support beams in the world. The architecture of Bada Imambara is a blend of Islamic and Indian styles, showcasing intricate designs and beautiful calligraphy. The site also includes a mosque, a stepwell, and a maze known as the Bhool Bhulaiya, which attracts many visitors. It stands as a symbol of the rich cultural heritage of Awadh.