German tanks of world war II(The top 2 heavy tank was never made), pin by Paolo Marzioli
British Army officers pose next to projectiles fired by the "Dora" railway gun. Dora and its sibling "Gustav" were 80 cm guns developed in the late 1930s by Krupp as siege artillery for the purpose of destroying the French Maginot Line fortifications. The guns could fire shells weighing seven tonnes to a range of 47 km (29 mi). Gustav was captured by US troops and cut up whilst Dora was destroyed near the end of the war in 1945 to avoid capture by the Red Army.