Pictured is a closeup view of an oil lamp burning for illumination at the Adrere Amellal, an eco-lodge in the Siwa Oasis in Egypt, around 50 kilometers east of the Libyan border. The structures are made of a combination of kershef a mixture of rock salt and mud, stone masonry, and carved out dwellings from the large mountain that hosts the lodge. Oil lamps and candles are the only source of light and the construction of the buildings eliminates the need for air conditioning.