Mosaic ceiling Baptistry of St John Florence Italy The Baptistry of St John Battistero di San Giovanni is thought to be the oldest building in Florence dating from the th or th century The basilicas magnificent ceiling mosaics were produced in the th century This detail shows the figure of Christ in Judgement which is over metres high Amongst the surrounding scenes is a depiction of the terrors of Hell lower right which is believed to have inspired Dante Alighieri when he wrote his Divine Comedy