A Byzantine beauty whose precise origins are shrouded in mystery and that’s thought to have been built on the site where the Glagolitic script, the forerunner to today’s Cyrillic script, was created. Briefly converted into a mosque by the Ottomans during the 15th century, unlike many similar churches the magic surrounding this place isn’t so much found in its architectural splendour or what treats lie waiting inside but has much more to do with its associations with several renowned figures, a fact that makes it one of the holiest sites in the entire region.