Amazingly, the first Destiny Easter egg actually appeared in Halo 3: ODST, way back in 2009. An advertising board with the seemingly innocuous title Destiny Awaits could be found in that game, complete with a shot of the Earth... but wait, is that the Traveler hovering over it? On your visits to the Tower you'll no doubt have noticed various ships buzzing around the place, and probably dismissed them as little more than background furniture. However, rather than just being randomly generated to make things look busy, these are the actual transport belonging to the guardians currently visiting this location. To confirm this, as soon as you warp into the Tower Plaza, turn right and sprint into the Tower Hangar. Get inside quickly enough and youll spot your ship being flown in and docked, before it gets lowered into the subterranean parking lot. A giant football first appeared in Halo 2, and made several appearances in subsequent games in the series. As a possible homage to this a football can be found in the Tower Plaza, which normally spawns on the left hand side under the stairs. By running or sliding into it you can kick it around, and perhaps get a little game going with your fellow guardians. Also in the Tower Plaza is a large purple ball, which is much more lightweight and floaty than the football. This normally appears on top of the crates next to Bounty Tracker Xander 99-40, although it can also be found on the table by the Cryptarchs tent. Knock it into the air, then see how long you can keep it up for... or, like me, spend an age trying to balance on top of it before some sod immediately kicks it away. Cheers, mate. Heres a secret feature of the Tower Plaza that requires at least two people to experience. On top of the Postmasters building is a large fan, and this rooftop can be accessed by sprint jumping from the nearby steps. Once youre on top of the fan, you need a second player to head up the steps at the side of the Plaza and onto the balcony overlooking the area. At the far end there are some panels on the floor, which provide an Activate Fan prompt when stood on--hold down the button here and anyone stood on the fan will be launched high into the air. Get the timing right, and combined with a jump you can reach the top of the flagpoles or even the pillars above the Vault terminals.