Things to do in Mumbai
The British built a magnificent city within the walls of Fort St. George, which lies at the southern extremity of the city. Some fine examples of the Gothic revival, Neo-classical style and Indo-Saracenic style are seen within this area. To get the best [South Mumbai] experience, stroll around the wide streets of the area right from Churchgate to Colaba. These areas are all beautifully planned and have wide and clean pavements unlike the rest of the city.
Museums and Galleries
Prince of Wales Museum
Some of the most famous museums and art galleries in India are found here. The Kala Ghoda area in South Mumbai teems with them, particularly the Chhatrapati Shivaji Maharaj Vastu Sangrahalaya (Prince of Wales Museum), and the National Gallery of Modern Art. Also worth planning a visit is Jehangir Art Gallery, also at Kala Ghoda, displays changing exhibits by notable artists.
Throughout the City
Mumbai has temples, mosques, churches, Parsi agiaries, and even a few synagogues reflecting the diversity of its citizens. While these are naturally of interest if you are a believer, some, like the Portuguese church at Dadar are worth visiting just for their unique architecture.