Gavin Hellier / Traffic lights and office buildings illuminated at dusk, part of new urban development, modern architecture skyscrapers in Potsdamer Platz, Berlin, Germany, 2007. As was the case in much of Berlin,...

Florian Möllers / House sparrow (Passer domesticus) breeding in the cannon tube of a tank at the Russian War Monument, Unter den Linden, Berlin, Germany, June 2007

Eladio Fernandez / Row of cannons in La Citadelle fortress, UNESCO World Heritage Site, Haiti. August 2016.

Loic Poidevin / Old canon on display outdoors in snow, Museum Raatteetie, Finland

Pascal Kobeh / A diver above the cannon gun at the bow of the the wreck of the San Francisco Maru, a passenger cargo used as a auxiliary transport vessel, Chuuk or Truk Lagoon, Carolines Islands, Pacific Ocean

Kristel Richard / The Honourable Artillery Company, the second oldest military organisation in the world, parades for its annual review at Guards Polo Club, Smith Lawn, in Windsor Great Park, United Kingdom. October 20...

Kristel Richard / The Honourable Artillery Company, the second oldest military organisation in the world, parades for its annual review at Guards Polo Club, Smith Lawn, in Windsor Great Park, United Kingdom. October 20...

Kristel Richard / HRH Prince Edward (right) and the commander review the Honourable Artillery Company, the second oldest military organisation in the world, at Guards Polo Club, Smith Lawn, in Windsor Great Park, Unite...

Kristel Richard / The Honourable Artillery Company, the second oldest military organisation in the world, parades for its annual review at Guards Polo Club, Smith Lawn, in Windsor Great Park, United Kingdom. October 20...

Kristel Richard / HRH Prince Edward reviews the Honourable Artillery Company, the second oldest military organisation in the world, at Guards Polo Club, Smith Lawn, in Windsor Great Park, United Kingdom.

Kristel Richard / HRH Prince Edward reviews the Honourable Artillery Company, the second oldest military organisation in the world, at Guards Polo Club, Smith Lawn, in Windsor Great Park, United Kingdom. October 2014.

Kristel Richard / The Honourable Artillery Company parades during the 799th Lord Mayor show, London, United Kingdom. November 2014.