The jagged mountains and deep valleys of Simien Mountains National Park, in Gonder, are home to several rare and endangered species including the Walia ibex, a goat found nowhere else in the world. The national park became a UNESCO World Heritage site in 1978. The park also hosts more than 50 species of birds. Birdwatching is a popular tour activity for visitors to Ethiopia, home to more than 850 known species. (TIM WHITE—GETTY IMAGES)