The Amphiareion of Oropos was a sanctuary dedicated to the hero Amphiaraos, situated in the hills 6 km southeast of the fortified port of Oropos in the northernmost point of Attica, amidst a pine forest [1][2]. Founded in the late 5th century BCE, the sanctuary served as a major religious site in ancient Greece [1][3]. Pilgrims traveled there to seek oracular responses and healing from the chthonian hero Amphiaraos [1][3].
Amphiaraeion of Oropos

| Type | Megalithic stones |
|---|---|
| Period | 1500 - 500 BC |
| Country | Greece |
| Coordinates | 38.2914° N, 23.8452° E |
Greece