There are a number of airspace areas where aircraft are prohibited from entering. These usually include both manned (e.g. planes and helicopters) and unmanned ones (i.e. drones). There are essentially two main types of restricted areas: no-fly zones and prohibited airspace. They differ slightly, but both are implemented to the the same effect.
In this gallery, we look at where in the world aircraft are prohibited from entering. Click on to find out if your country is on the list.