The theater of Dion was built during the Hellenistic years, on the same premises of a rudimentary theater built during the reign of Archelaos (5th century b.C.) The seat rows were made of brick and the floor of the orchestra was made of beaten earth, while the stage and the backstage were made of marble. The theater was deserted near the end of the 2nd century BC. Today, the historical theater has been renovated with modern seats and is utilized for cultural events and the Olympus Festival.