Here is our weekly selection of the best photographs sent in by readers. We start with a picture by Mark Bennett taken in the restricted area around the Chernobyl reactor, Ukraine.
Paul Rowland: "This picture was taken on holiday in southern France last week and is of my friend Neil Taylor with Percy the Inflatable Penguin on a tribute skydive to a friend."
Altamash Kamal: "This girl is one of many street children in Pakistan's largest city, Karachi."
Jean-Frederic Beaudet: "A quick way to get rid of a bicycle, except when the water level is low. Quebec City, Canada."
Harvey Eaton: "It seems evident that the uncomfortably hot weather brought the creepy crawly community out in force."
Kenny Cobbett: "This is actually a picture of me 'holding' the sun taken by my friend Kiran through a pair of sunglasses."
Anita Lundie: "This photo was taken on the steam train from Fort William to Mallaig as we were going over the Glenfinnan Viaduct."