St. Catherine's Chapel ruin is situated on a hill above the village of Abbotsbury in Dorset, and is dedicated to Saint Catherine. Built in the 14th century, it is now in the guardianship of English Heritage.
St. Matthias Abbey (Trier, Germany) The resting place of the Holy Apostle - If it ain't baroque, don't fix it! This is gorgeous! http://commons.wikimedia.org/wiki/File:Baroque_portal_of_St._Matthias'_Abbey,_Trier.jpg