Iberian Settlement of Ca n'Oliver Curiosity · Cerdanyola del Vallès, Vallès Occidental, Barcelona The Iberian settlement of Ca n'Oliver, declared a cultural asset of national interest, sits on a hill in the Collserola park, in the municipality of Cerdanyola del Vallès, from where the entire Vallès plain can be seen. It was inhabited between the 6th century and 50 BC by a family of high social standing, as was usual among Laietanian settlements: it began as a group of simple houses which, between the 4th and 3rd centuries BC, were expanded with a large entrance, a ditch and a field of grain-storage pits for the agricultural surpluses traded with other Mediterranean peoples. It was destroyed in the Second Punic War and later rebuilt, until it was abandoned with the arrival of the Romans; between the 9th and 10th centuries it was inhabited again. The site was first turned into a museum area in 1999, and in 2010 the Iberian Museum of Ca n'Oliver was opened. Photo: Clemens Schmillen (CC BY-SA 4.0) What to see and do in Cerdanyola del Vallès