The excavated portion of the Roman city covers about 1.2 hectares and corresponds to the "monumental" district around the forum, where the most important public buildings stood. The city was built on a sloped site and consequently its buildings were constructed upon a series of artificial terraces, with at least three terraces visible today. Streets were laid out in a regular grid and the two most important streets were the decumanus maximus and the cardo maximus.
