Malabar Hill and Environs

This tony area is at the far end of Marine Drive, where some of the richest and most powerful people in Mumbai live. It's also probably the best place to see the sheer amount of money this city is made of—take, for instance, Antilia, the "quaint" house industrialist Mukesh Ambani recently completed on Altamount Road. Its $2-billion price tag, 560-foot height (27 floors), and 400,000 square feet of living space make it the most expensive, and largest, residential home on the planet. (That the 600-person-staffed behemoth is a mere 10 km [6 miles] from Dharavi, one of the largest slums in Asia, where 1 million people share less than 2½ square km [1 square mile] of land, highlights the extent of India's massive income gap.) Along the switchback roads of Malabar Hill you'll also find the ancient Babulnath Temple (a Shiva temple), the austere Jain Temple, the spring-fed Banganga water tank, and the verdant Hanging Gardens.