Aksum, Etiopija
Debre Damo is one of Ethiopia's most important monasteries and is thought to date back to Aksumite times and the 6th-century reign of King Gebre Meskel. The monastery’s formidable cliffs make for one of Ethiopia's most memorable experiences (for men, at least – women aren't allowed up). To reach the monastery, you'll need to scale a sheer 15m cliff; there’s a thick leather rope to help you climb and the monks will tie a second line around your torso and help pull you up.
