The Temple of Poseidon is an ancient Greek temple located at Cape Sounion, overlooking the Aegean Sea. Built in the 5th century BCE, it was dedicated to Poseidon, the god of the sea, earthquakes, and horses. The temple is known for its stunning Doric columns, of which 15 remain standing today, providing a glimpse into ancient Greek architecture. Visitors to the temple can enjoy breathtaking views of the coastline and the surrounding islands. The site is also rich in history, as it was a significant religious center for sailors seeking protection from the sea. The Temple of Poseidon remains a popular tourist destination, attracting many who wish to explore its historical significance.