Snow-capped Mount Kilimanjaro, Tanzania

Africa's rooftop

A staggering 19,341 feet tall, Mount Kilimanjaro is the highest point in all of Africa. In our twilit shot framed by acacia trees, its main cone known as Kibo dominates. That we're calling it a 'cone' might tip you off to another key fact about 'Kili': It's the world's tallest land volcano outside of South America. Its last eruption was 360,000 years ago, but this sleeping giant is merely dormant, not extinct, and could become active again someday.