Located in the northwest corner of the Roman Square, the Old City Hall consists of three reconstructed 15th century herringbone buildings. These three beautiful connected Gothic buildings, with their terraced herringbone roofs, are unique. Although they have been destroyed by hundreds of years of war, they are still well preserved after renovation, which can be said to be a symbol of Frankfurt. In the middle of the building, people call him Reima. On the second floor of Reima, there was an emperor's hall, which used to be the place where the Holy Roman Emperor held his coronation ceremony. The buildings of the old city hall are very distinctive and there are many tourists from all over the world.