In Santorini there are at least 600 churches and chapels, 50 of which dedicated to the Virgin Mary, awaiting to be discovered. Most of these have large, pure white surfaces, divided into parts forming a cube, rectangular cuboid, octagonal prism, sphere or cylinder.
Though they lack architectural decoration, they have a few small openings. In other words, their admirable anonymous folk architecture is prevailing.
The most important Byzantine monument of Santorini is the church of Panagia Episkopi, which is located in the homonymous village. You will have the chance to admire numerous remarkable churches, situated both in and around the island’s settlements, as well as on the hillsides. Regarding the monasteries of Santorini, it is worth visiting Agios Nikolaos in Imerovigli as well as the monastery of Profitis Ilias, that is near to the village of Pyrgos and from which you will enjoy a panoramic view of the whole island.
You will find in more detail the geographical location of religious monuments on the following link: