Nabta Playa, discovered in 1974, is a prehistoric site located in a remote desert region near the border of Egypt and Sudan.
A mud-brick structure in Agadez, Niger, could pave the way for coping with climate change.
While not a traditional treasure hunt, this film sees Ben Stiller's Walter Mitty embark on a transformative journey in search ...
From bubblegum-coloured lakes in Australia to a solar-powered safari camp in Botswana, these are BBC journalists' top ...