Height: 19,341 feet
Relative Difficulty: Easy-Moderate
As the tallest mountain in Africa—and the continent’s contribution to the “Seven Summits”— Kilimanjaro consists of three extinct volcanoes. Climbing more than 16,000 feet from the surrounding plains brings you through a stunning array of ecosystems: from cultivated soil, through rainforest, past alpine desert and up over glaciers at the peak. While this tough trek is well known as beginner-level, and most guide services require no prior experience, around 10 people still die on it each year, mostly from severe altitude sickness.