Floohoo Travels offer Santhome Cathedral Tour Packages. Book Santhome Cathedral Holiday Tour from a wide range of tour packages based on your interests. An imposing structure stands, south of Marina beach, a Roman Catholic basilica, the Santhome Cathedral. First built by Portuguese settlers in the 16th century in homage to St. it was subsequently rebuilt by the British in the neo- Gothic style by the British in 1893 and is today a magnificent landmark in Chennai. The Santhome basilica is believed to be one of onlythree to have been built over the tomb of an apostle - the others being St Peter's in Rome and St. James in Santiago, Spain. Once it was the principal church of the Roman Catholic Archdiocese in Chennai and the extended area of Mylapore. The Santhome Cathedral was declared a national shrine in 2006.