Prince of Wales Museum and Chhatrapati Shivaji Maharaj Vastu Sangrahalaya in Hindi, is the largest museum of India. In it you can find all kinds of Indian art from prehistory to the present. In addition, it's also the Museum of Natural History and features works of decorative art, western painting and Chinese and Japanese art.
The building is amazing, Indo-Saracenic style, built by the same architect as the Gateway of India. What stands out most of its structure is the white dome. It was built in honor of the visit of King George V of England but the first stone was brought down by the Prince of Wales in 1905. If you don't want to enter, you can pass through its magnificent gardens and watch this beautiful building.