Italy, Aquileia - mosaic floor

Fishing scene describes the preaching of the Apostles ("Follow me and I will make you fishers of men":Matthew 4,19). The fishes represent the people listening to the good news, the boat is symbol of the church, the net represents the kingdom of heaven ("The kingdom of heaven is like big net that was cast into the sea...": Matthew 13,47).
Post-Theodorian South hall (end of 4th century)
Mosaics were originally part of Theodorian complex destroyed by Attila. Basilica was built on its site in 1031 and mosaics remained untouched under the floor.