The Greek Orthodox Monastery of the Virgin Mary, better known as Sumela Monastery, 46km south of Trabzon, is one of the Black Sea coast's historical highlights. Founded in the 4th century AD, it was abandoned in 1923 after the creation of the Turkish Republic and the 'exchange of populations'. Its highlight is the main church, with damaged but stunningly coloured frescoes both inside and out. Undergoing extensive renovation at the time of research, it was due to reopen in spring 2017.