Bara Imambara
Let's start this list with one of the most significant heritage sites in Lucknow, Bara Imambara. Built by the fourth Nawab of Awadh, Asaf-ud-Daula in 1784, this is a stunning architectural marvel that you shouldn’t miss. The Bara Imambara complex is home to an ancient mosque and Shahi Baoli (stepwell). But, the primary highlight remains the Bhool-Bhulaiyan, a complex sequence of labyrinths with over 489 interconnected doorways. That’s not it! The central hall of this iconic building is actually the world’s largest arched hall. Honestly, exploring the Bara Imambara is undoubtedly one of the best things to do in Lucknow.