visiting Mallorca - non-typical sites to see (Balearic Islands)

Hi, early June I'll be coming to Palma to my Spanish family and we're bringing friends from Belgium. Can anyone advise on atypical sites to see or visit, bar or restaurant to go to in the neighbourhod of Palma, Coll d'en Rabasa? We know the usual sites and there is lots to see, but are looking for something different.
Thanks in advance! Ingrid & Manolo