In the whole world, there are only three churches built over the tomb of an Apostle of Jesus Christ- the Basilica of Saint Peter built over the tomb of St.Peter in Rome, Cathedral of Santiago de Compostela built over the tomb of St.James in Spain and Basilica of the National Shrine of St.Thomas built over the tomb of St.Thomas. Basilica of the National Shrine of St.Thomas is in Chennai, India. The present National Shrine of St.Thomas is built over the tomb of Saint Thomas the Apostle, who came to India in the year 52 AD. After preaching on the west coast, he came to Chennai (formerly Madras), and suffered martyrdom on a hill at the outskirts of the city, today known as "St. Thomas Mount." His body was buried on the spot over which the present Basilica stands. A valuable work of art kept in the Basilica is an ancient painting of Our Blessed Mother, in front of which the other great apostle of India, St. Francis Xavier, used to pray. There are two new structures today: the Tomb Chapel below the Basilica and 'Museum cum theatre'. The new underground chapel with a separate access outside the church structure, allows pilgrims to pray at the tomb and tourists to visit it, without disturbing the sacred functions in the church. The museum exhibits artifacts connected with St. Thomas and the Basilica, and the theatre is used for screening a short video on the life of the Apostle.