We have seen it drawn, but never live; a scene in Joss Whedon film where every member of the team, in full uniform, stands together as a unit.
Now thanks to CelebBuzz that gathered a full gallery of photos from The Avengers shoot in Central Park with every single member of the team including Loki.
Looking through the photos you can see Robert Downey Jr., Chris Evans, Chris Hemsworth, Scarlett Johansson, Jeremy Renner, Mark Ruffalo, Tom Hiddleston, and Stellan Skarsgard at the Bethesda Fountain.
In costumes though we can see only Thor and Loki, but I still think these pictures are great. Check out some of the images below or the full gallery over on CelebBuzz.