If only the towering walls of Montsoriu Castle could talk! But seeing they can't, inquire if tours are available to hear a couple of its tales instead.
This fortified complex in Sant Feliu de Buixalleu is well-liked by fellow travelers, so leave a spot for it on your to-do list. Don't think that's all there is to do here, though. There are many more spots waiting for you to discover after Montsoriu Castle. Gorg Negre, Portal de Barcelona, and Cueva del Relliguer are not far away.