The remains of crocodile mummies on the Nile River are excavated. Millions of grass circles are found in the Namib Desert. A lost stone ruins is re-discovered in Egypt. A band of strange holes in the Nazca Plateau is investigated.

Egypt's Red Sea find links to the Great Pyramid. Life-sized camel sculptures found in Saudi Arabia's rocks. Mauritania investigates Sahara Desert formation. 37-million-year-old enigmatic fossil uncovered in Egypt's sands.