The Sanctuary of Zeus is an ancient religious site located in Olympia, Greece. It was dedicated to the god Zeus, the king of the Greek gods, and served as a major center for worship and athletic competitions. The sanctuary housed the famous Statue of Zeus, one of the Seven Wonders of the Ancient World, created by the sculptor Phidias. The site also hosted the Olympic Games, which began in 776 BC and were held every four years. Athletes from various Greek city-states competed in these games to honor Zeus. The sanctuary includes several important structures, such as temples, altars, and treasuries, reflecting its significance in ancient Greek culture.