Botswana: Okavango to Kwando (E03)

Take flight across Botswana's sprawling Kalahari Desert, through its life-giving Okavango Delta, and deep into its dynamic history. Botswana's landscape is home to giant wildlife reserves, four-billion-year-old rock formations, salt flats the size of Portugal, and a rich vein of gemstones. During the journey, Botswana's history of ancient civilizations, missionary icons, notorious slave traders, and enormous wealth are brought to life. (Smithsonian Channel)