At the crossroads of the cardo maximus and the decumanus maximus, there is a vast central space which played a key role in the heart of the city. It opens onto a wide colonnaded street, the Tiberia platea (85 m long by 23 m wide) which was entirely paved by a certain T. Baebius Asiaticus, "in fulfillment of his duties as aedile" as indicated the inscription found near the steps supporting the monumental entrance (propylon) that separated this space from the Augusta platea. Its quarry and the pavement are placed by scholars at the beginning of the 1st century A.D.  This space surrounded by shops, probably corresponds to the forum. A platea is a wide colonnaded avenue. Its name, Tiberia platea, is revealed by an inscription that stood there, displaying an edict from the governor of the province of Galatia, L. Antistius Rusticus, which sought to limit the price of wheat and avoid hoarding in a shortage situation. Shops were built behind the colonnades. Excavations of the square and these stores have uncovered a large amount of glass, terracotta, bronze, kitchen utensils and hundreds of coins. Due to its centrality, it was the heart of the city. The water, which came from the nymphaeum, was distributed in the city and even on this place where the excavations revealed the presence of a fountain.