New town of Carlos III Historical milestone · Sant Carles de la Ràpita, Montsià, Tarragona Image of Sant Carles de la Ràpita, not of the place itself. Carlos III ordered in 1780 that a wholly new city and a great port be raised beside the badia dels Alfacs, with a regular grid and monumental buildings. The project was left unfinished after the king's death, but it fixed the urban layout that can still be recognised. 1780 Photo: Deosringas (CC BY-SA 3.0) What to see and do in Sant Carles de la Ràpita