Discovery of the Iberian treasure of Tivissa Historical milestone · Tivissa, Ribera d'Ebre, Tarragona Image of Tivissa, not of the place itself. In 1927 there appeared at the settlement of El Castellet de Banyoles a set of silver vessels and paterae decorated with ritual scenes, hidden around the third century BC. It is one of the great treasures of Iberian goldsmithing in the Peninsula. 1927 Photo: flamenc (CC BY-SA 3.0) What to see and do in Tivissa