The Heroön at Nemea is an ancient Greek sanctuary located in the Peloponnese region of Greece, near the modern-day village of Ancient Nemea. The sanctuary was dedicated to the hero Opheltes, also known as Archemorus, who was an infant son of the king of Nemea.
According to legend, Opheltes was killed by a serpent while his nurse was fetching water for his bath. In his memory, a hero-cult was established, and the Heroön was constructed as a place of worship and pilgrimage.
The Heroön at Nemea is a small temple with a rectangular floor plan, measuring about 10 meters by 6 meters. It is built of local limestone and features a single entrance on the eastern side. Inside, there is a central cult chamber with an altar and a niche for the statue of Opheltes.
The sanctuary was in use from the 6th century BCE until the 3rd century CE, and was a popular destination for pilgrims seeking healing and divine guidance. The site was also used for religious festivals and athletic competitions, including the Nemean Games, which were held every four years and included athletic contests and musical performances.
Today, the Heroön at Nemea is a major archaeological site and has been partially restored. Visitors can explore the temple and surrounding ruins, including the remains of a stadium and a gymnasium. The site also features a small museum with artifacts from the sanctuary and the surrounding area.
The Heroön at Nemea provides insight into the religious and cultural practices of ancient Greece, and is an important part of the rich history and heritage of the region.