Being one of the busiest cities in the world, it may seem like there is barely any free space in Cairo.
But in the densely packed urban cityscape there is one space that still has untapped potential - rooftops.
While some residents have been using their rooftops for years to grow food or even raise livestock, most roofs in the city are just filled with clutter.
But urban farming organisation Schaduf is trying to change all that by getting residents to create urban rooftop farms.
Video by Simon Hanna and Trine Kit Jensen
For more information on Schaduf's rooftop farming scheme visit https://www.facebook.com/schaduf?fref=ts