The "Marble Relief of the Piraeus" is an ancient Greek sculpture that depicts a scene from the port of Piraeus, which was the main harbor of Athens. This relief showcases the bustling activity of the port, highlighting the importance of maritime trade and naval power in ancient Greek society. Dating back to the 4th century BCE, the relief is made of marble and features detailed figures engaged in various tasks, such as loading and unloading goods. It serves as a valuable artifact for understanding the economic and social dynamics of Athens during its classical period.