Lego Avengers was a LEGO theme released in 2012. It was based on the Avengers movie, and included sets from different parts of the movie. Each LEGO Avengers Set consisted of the famous interlocking LEGO bricks which could be assembled to depict different vehicles, scenes, or other things found in the theme shown.
Some LEGO Avengers sets include:
The Quinjet (6869 Quinjet Aerial Battle)
Captain America's Motorcycle (6865 Captain America's Avenging Motorcycle)
Many other sets were released or are scheduled to be released. Avengers "Minifigures," or Lego 'people,' included: Iron Man, Thor, Hawkeye, The Hulk, Captain America, Black Widow, Loki, and many other characters from the Avengers Movie and the Avengers theme.