Palma’s Cathedral is a true classic you just can’t miss, but here’s a little secret: in summer you can actually climb up to the terraces. From up there is simply breathtaking — you can see the sea, the whole city, and even peek at the Rosetón (the large circular stained-glass window on the main façade, also known as the “Gothic Eye”) from behind. Tickets can be purchased directly on the Cathedral’s official website: https://catedraldemallorca.org/en/visits/tours/