The three-legged peninsula of Halkidiki, a treasury of ancient Greek archeological sites and the birthplace of Aristotle, is one of the most geographically unique areas of Greece. Halkidiki, in a heavenly environment between the greenest mountains and bluest seas, is quite popular with tourists from the nearby Slavic countries and from Russia. Many visitors get permits to visit Mount Athos, designated a Unesco World Heritage site and a leading centre of pilgrimage and worship for the Orthodox religion.