Kilimanjaro is actually composed of three volcanic cones: Kibo, Mawenzi, and Shira. Kibo is the highest cone, where the summit, Uhuru Peak, is located. Mawenzi, the second-highest, is famous for its jagged peaks, while Shira, now dormant, is the oldest of the three cones. The volcanic origin of the mountain adds to its dramatic landscape, making the climb all the more awe-inspiring.