in 2015 making it the most visited state in India both domestic and foreign tourists. The state boasts some of the grand Hindu temples built-in Dravidian architecture. The Nilgiri Mountain Railway, Brihadishwara Temple in Thanjavur, Gangaikonda Cholapuram and the Airavatesvara Temple in Darasuram (Great Chola Temples) and the Shore Temple along with the collection of other monuments in Mamallapuram which have been declared as UNESCO World Heritage Sites. See also Chronology of Tamil history History of Tamil Nadu List of countries where Tamil is an official language List of denotified communities of Tamil Nadu List of dams and reservoirs in Tamil Nadu Outline of Tamil Nadu Tamil Eelam Tamil inscriptions Tamil Muslim Tamizhi Notes 1.The total sum of area of all districts from the data provided on the official Tamil Nadu Government website, https://www.tn.gov.in/district_view is 132,862 Sq.Km References Citations Sources . Further reading External links Government The Official Site of the Government of Tamil Nadu Official Tourism Site of Tamil Nadu, India General information . States and union territories of India States and territories established in 1950 1950 establishments in India Tamil-speaking countries and territories Indian states articles by quality