As the name precisely suggests, this was the opulent palace of Rani Ahilyabai Holkar which the reason why it is also known as the Queen's fort. This fort was also the administrative headquarter of Rani Ahilyabai during her reign and currently it has been converted into a guesthouse, which is managed by the son of the last Maharaja of Indore, Prince Shivaji Rao Holkar.
This palace is the zenith of the Maratha architecture. To add to this, the palace is also host to a weaver's cooperative society in its premises. This structural marvel is sure going to teleport you to the ancient times.