PhD Candidate Mr. Athanasios Serafeim won the annual photo competition of the European Geosciences Union (EGU) General Assembly in Vienna, Austria. The photo shows the sunset view of the Simonopetra (Greek: Σιμωνόπετρα, literally: “Simon’s Rock”) Monastery, on the southern coast of the Athos peninsula, in Northern Greece. The monastery, which was built during the 13th century, is located at an altitude of 300 meters from the sea level, on a granite rock hillside and is one of the most daring buildings of Byzantine engineering, as it is a seven-storey tower building. The whole peninsula is an UNESCO world heritage site and is protected since 1988. The photo is available in high resolution from the digital repository of the European Geosciences Union (EGU) at https://imaggeo.egu.eu/view/17014/.