It is a prestigious land mark of the city. British bought this piece of land from the King of Vijayanagar on 22nd August 1639 and built the Fort St. George and named the area as Madraspattinam. St.Mary�s Church built in 1860 is located inside the fort complex. http://www.tamilnadutourism.org/places/CitiesTowns/chennai01.aspx?catid=010101P01;pg=2