It has the highest number of millionaires and billionaires among all cities in India. Mumbai is home to three UNESCO World Heritage Sites: the Elephanta Caves, Chhatrapati Shivaji Maharaj Terminus, and the city's distinctive ensemble of Victorian and Art Deco buildings designed in the 19th and 20th centuries. Bandra Worli Sea Link is a 5 km long bridge built on the Arabian Sea; it connects Bandra and Worli. The bridge is known for its architectural magnificence, and it is the first cable-stayed bridge built on the open sea in India. It is also one of the prominent landmarks of Mumbai.