It's one of the most iconic items in the Marvel Universe, a symbol of heroic justice and a weapon that's wiped the floor with everyone from Nazis to powerful cosmic villains. Let's hear it for Captain America's ever-reliable shield.
Cap is seldom seen without his famous vibranium disc, which made its debut way back in 1941's Captain America Comics #2, replacing the original heater shield Marvel's patriotic supersoldier was seen packing in issue #1.
Although Steve Rogers' relationship with his shield has gone through its ups and downs over the years - with the character famously abandoning it when he took on the Nomad identity for the first time in the 1970s - the weapon has served him well over the years, saving his life, and indeed the world, on countless occasions.
Throughout the ages, Cap's shield has withstood thunderous blows from the Hulk's fists, Iron Man's energy repulsor beams and Thor's divine hammer, but even the hardest metal the Marvel Universe has to offer isn't completely indestructible, and there are heroes and villains who've actually managed to break it...