Renaissance architecture
When the Ancient Roman Emperors came back from winning a battle, they built a Triumphal Arch as a monument to themself. There are several of these monuments in Rome and they have the same design: a big arch at the centre, and a smaller lower arch or doorway on either side. The architect Alberti used this as the design for the front of the church of Sant' Andrea in Mantua. He used the same pattern of tall and arched, low and square, all down the inside of the church as well. This was copied by many other architects.