Sion, Mumbai
A 17th-century hilltop fort built to guard the northern approaches to Bombay Island, associated with Maratha king Chhatrapati Shivaji Maharaj's campaigns against Mughal and British forces in the region. Little remains beyond its outer walls and bastions today, overtaken in parts by residential development around Sion. The fort offers elevated views over the Sion-Mahim creek and the surrounding suburb. It is freely accessible and maintained as a small public heritage precinct.