LEGO Batman - Under the Cowl

Batman first appeared in LEGO form in 2006. Since then, he's become one of LEGO's most iconic characters, starring in dozens of sets as well as three LEGO games (as well as LEGO Dimensions, where he is both a leading character and the focus of a level pack), several straight-to-DVD movies, and two blockbusters: The LEGO Movie, where he was a leading character, and of course the LEGO Batman Movie.
 While he's just over a decade old (in LEGO), Batman is one of LEGO's most prolific characters. Here are all (I think) his LEGO costumes, with links to the original sets where possible: