Estonia could be divided into two main cultural areas. The coastal areas of Northern and Western Estonia had close overseas contacts with Scandinavia and Finland, while inland Southern Estonia had more contacts with Balts and Pskov. The landscape of Ancient Estonia featured numerous hillforts. Prehistoric or medieval harbour sites have been found on the coast of Saaremaa. Estonia also has a number of graves from the Viking Age, both individual and collective, with weapons and jewellery including types found commonly throughout Northern Europe and Scandinavia.