The historic site of Thermopyles is a mountain pass between north and south Greece. The area has taken its name from the nearby hot water springs. The pass leads from Locrida to Thessaly, between Mount Iti and the Maliakos Gulf.

At the time of King Leonidas, when the battle of Thermopyles took place (480 B.C.), the pass was a narrow path of approximately 12 meters width, running between the foot of the mountain and the sea. Today it reaches from 1.5 to 3 kilometers wide, due to sediment deposition at the mouth of the river Sperchios.

On the former battlefield, lies the tomb of Leonidas and the 300 Spartans and right next to it is the memorial to the 700 Thespians who also fought in the battle.

In the area of Thermopyles operates the innovative museum. In the approximately 850 m2 of the Museum, with the use of modern digital technology, visitors can be informed by specialized people for the battle, for the period of the battle and the lasting impact on humanity of that great historical event.
There are special programs for children, students and adults.