10) The Infinity Gauntlet – Thor
It’s pretty common knowledge that what the MCU has been building up to all this time is a humungous battle against purple Josh Brolin (AKA Thanos), who will gather up the Infinity Stones our heroes have encountered over the years and use them for evil. That much has been obvious since Thanos turned up at the end of The Avengers.
Before we had even seen any of the Stones, though, Marvel were already teasing what lay ahead. In Thor, when the Destroyer is attacking Asgard, we get a glimpse of the Infinity Gauntlet – which Thanos uses to harness the Stones’ power – sitting in Odin’s Throne Room.
A cool easter egg it may be, but it does raise the question of how Thanos had it in Avengers: Age of Ultron… Or at least it did, until Marvel chief Kevin Feige confirmed that Odin has one Gauntlet while Thanos has the other. Because, you know, gloves come in pairs. Duh.