Altar to the Unknown God, a resin cast recreation is about 11 inches tall by 7 inches square. It weighs 16 pounds. This altar is big and great for display. In Acts 17:22-31 Paul speaks about the “Unknown God” on Mars Hill in Athens, Greece. An altar dedicated to the Unknown God was discovered in 1820 on the Palatine Hill of Rome which is now on display in the Palatine Museum.