Sikandar Bagh was Wajid Ali Shah's pleasure garden, walled and laid out around a central pavilion, and is best known for what happened to it on 16 November 1857: a force of around 2,000 rebel sepoys had occupied the walled enclosure; when General Colin Campbell's relieving army arrived, the resulting assault left almost all the defenders dead in what was one of the bloodiest single actions of the entire Indian Rebellion.
The gardens are quiet today and contain a memorial to Uda Devi, a Dalit woman who climbed a tree inside the compound and shot down a dozen British soldiers before she was killed. The site now houses the National Botanical Research Institute and is open to visitors during normal working hours.