Piraeus is a port city located in Greece, just southwest of Athens. It serves as the main harbor for the capital and is one of the largest ports in the Mediterranean. Piraeus has a rich history, dating back to ancient times, and was an important naval base for the Athenian Empire. Today, Piraeus is a bustling urban area with a mix of commercial and residential spaces. The city features several attractions, including the Archaeological Museum of Piraeus and the picturesque marina. It is also a key transportation hub, connecting mainland Greece to various islands in the Aegean Sea.