Mystery of the desert: The lost cities of the Nigerien Sahara
A long trek across the desert of northeastern Niger brings the visitor to one of the most astonishing and rewarding sights in the Sahel: fortified villages of salt and clay perched on rocks with the Saharan sands laying siege below.
Wow, I had no idea there was anything like this way out there in Niger. I would love to check it out, but I have a feeling that might not end well.