Hagia Sophia also known as Aya Sofya, is said to be one of the largest basilicas in the Christian world and was the first masterpieces of Byzantine architecture. This church was said to be the largest church for more than thousand years. Hench, this church houses precious and majestic Christian artefacts such as the cross of the crucifixion, Jesus' swaddling clothes, and artefacts used in the Last Supper. Thus, this church is believed to be the mother of churches and is highly popular with those on religious tours. The interiors of the church is splendidly adored with luxury marbles and elaborate mosaics in shades of gold, green, blue, and red and which cover over 200,000 square feet.