Check out what appears to be Ultron hidden under a dark cloak to keep prying eyes away—just as the Winter Soldier was seen for the first time when filming in Cleveland—and then without the cloak to film a scene. Plus, you can also see a photo of Hawkeye and Scarlet Witch together filming a scene as well.
Check out the pictures below, along with some that are zoomed in. Click to enlarge them.
UPDATE: Two more images of what looks to be Ultron added at the end.
[Related Story: AVENGERS: AGE OF ULTRON Set Photos Reveal Hawkeye, Scarlet Witch and Quicksilver on Location in Italy]
(Images source: CBM, SuperHeroHype)