Travelers are voting The Govt. Museum, National Art Gallery & Connemara Library, Guindy - Raj Bhawan and The High Court as the best of 25 key buildings in Chennai. There are 20 key buildings in Chengalpattu a city just 32 km from Chennai and 1 key building in Kanchipuram which is 41 km distant. The most popular of these are The Govt. Museum, National Art Gallery & Connemara Library in Chengalpattu and Mahindra World City in Kanchipuram. You can find 47 key buildings in Tamil Nadu and 609 key buildings in the country of India. Our members favorite in Tamil Nadu is Vivekananda Memorial and Taj Mahal is the top pick in India. Want more? Check out our map of key buildings in Chennai.