There are certain places in the world that just take people’s breath away.... It’s home to over 20 lakes, though most are saltwater. The exception is Lake Chad, which is a vital freshwater lake that supports local communities. The desert’s only permanent river is the Nile, which flows across its northeastern edge. Incredibly, the Sahara wasn’t always barren.... Many are nomads who move with the seasons, while others live in permanent settlements near water sources....