Timpanum
Tympanum (tympana, tampan) is a decorative wall that is located on the entrance of the building, partitioned by a lintel (railroad crossing, lintel) and an arch and has a semicircle or a triangle. It is often decorated with sculptures and the like. In Greek · Christian architecture, it is usual that Timpanumu has a religious scene depicted. The revolving form surrounding Timpanum is called Arkbolt. ...