The palace has five separate units, each with a large central courtyard surrounded by buildings erected on terraces stepped into the hillside. These units, each of which has four to five buildings, communicate with each other via gates, flights of steps, and galleries. On the south side, facing the agora, was a monumental colonnade. Unlike at Vergina, here at Pella the palace was the administrative centre as well as a grandiose royal residence. The royal household lived here along with various administrative, military, and financial services with their suites of handsome banqueting rooms and baths. There were also archives and libraries, the royal mint, and rooms for cultic purposes. For keeping fit there was a palaestra, or wrestling ground, and the portico of a gymnasium.