Dry-stone architecture of the Terra Alta Historical milestone · Caseres, Terra Alta, Tarragona Image of Caseres, not of the place itself. The margins, huts and cisterns raised without mortar organised for generations the cultivation of the vine and the olive on the slopes. The technique, still visible throughout the district, was recognised as intangible heritage in 2018. siglo XIX Photo: Willtron (Wikimedia Commons) (CC BY-SA 3.0) What to see and do in Caseres