Part of the Agora ruins, which is a must see with the old museum located within the area. The temple is the pinnacle of the area! Make sure you have plenty of water and shade, with a good pair of shoes!
The Metroon, was originally a four room building that housed and catalogued, public records including legal and financial.
There is only a small amount of remnants and base outlines that are left, but there are plaques that summarise the history of this building.