The Altar of Zeus is an ancient monument located in Pergamon, a city in modern-day Turkey. Built in the 2nd century BCE, it was dedicated to the Greek god Zeus and served as a significant religious site. The altar is renowned for its impressive friezes that depict battles between the gods and giants, showcasing the artistic skills of the time. The structure was designed in a grand style, featuring a large staircase leading up to the altar platform. It was part of a larger complex that included a temple and other buildings, reflecting the importance of Zeus worship in ancient Greek culture. Today, the altar is housed in the Pergamon Museum in Berlin.