Shaniwar Wada was the palace of the Peshwas (Prime Ministers to the Maratha King) since the 18th century. The construction of this structure started on a Saturday, hence the name Shaniwarwada. Started by Bajirao I on 10th January 1730 the monument was completed in 1732. Spread over 625 acres, it was primarily a residence of the Peshwa and is a heavily fortified building complex with nine bastions and five gateways. The Pune Municipal Corporation has started a sound and light show in an open air auditorium in the palace grounds of Shaniwarwada which is a must watch.