Rahasya: Lucknow's 'Imambara' mystic design!

Lucknow's Imambara is often called as a 'Bhool Bhulaiya' by many but it is simply a creation of art and design. Built by Asaf-ud-Daula, Nawab of Lucknow, in 1784, the architecture is also called Asafi Imambara. But, how was it designed that still remains a mystery as we turn over a leaf in the pages of history.