City walls – Acropolis
It is certain that the city of Aigai had been wall-surrounded already from the Perdiccas II times (454-413 BC). A gate and traces of the 5th pre-Christian century wall were found northwest of the city, next to the tombs of the queens.
At the beginning of the reign of Philip II (359-336 BC) the city-walls were reconstructed with the new wall surrounding the slope where the city centre laid. City-walls also surrounded the two hills to the south of the palace, where the acropolis laid. The walls were 3m thick and were reinforced with towers. Up to a certain height the fortification was constructed by stone with façades of porous cornerstones, a material transported from the Vermion mount quarries (a distance >10km), while from this point upwards the material used was unbaked mud-bricks. A grand gate was constructed at the eastern part of the walls and a smaller one on the walls’ northwestern corner. Underneath this second gate the remains of another one were revealed that formed part of the older 5th century city-walls.