ST. MARY'S ORTHODOX CHURCH, THIRUVITHANCODE, NEAR THUCKALAY, KANYAKUMARI, TAMILNADU, INDIA - IT IS BELIEVED TO BE THE OLDEST CHURCH STRUCTURE EXISTING IN THE WORLD. BELIEVED TO BE ESTABLISHED BY ST. THOMAS, DISCIPLE OF JESUS CHRIST IN 63 AD.
" Thiruvithamcode Arappally ("Royal Church"; Tamil:திருவிதாங்கோடு அரப்பள்ளி; Malayalam:തിരുവിതാംകോട് അരപ്പള്ളി;), or Thomayar Kovil or St. Mary's Orthodox Church. It is believed by the Christian communities in Kerala that the historic Thiruvithamcode Arappally, also called Amalagiri church as named by the Chera King Uthiyan Cheralathan,was built by St. Thomas, known as the Apostle of India, in 57 AD. Thiruvithamcode (also spelled Thiruvithancode, Thiruvithankodu and Thiruvithangodu) is a small panchayat town located in the Kanyakumari district of the Indian state of Tamil Nadu. It is about 20 km from Nagercoil, and 2 km from Thuckalay. The church today is maintained by the Malankara Orthodox Syrian Church. Catholicos of the East and Malankara Metropolitan, Baselios Mar Thoma Didymos I proclaimed the church as an international St. Thomas pilgrim centre on December 16, 2007." - Wikipedia