LEGO® is a trademark of the LEGO® Group.
Sascha Mehlhase (a postdoc at the Niels Bohr Institute in Copenhagen) designed a model of the ATLAS experiment in LEGO® bricks. It illustrates all details, from the muon and magnet system to the innermost pixel detector. Many other copies of this model have been constructed around the world.
Here are some key features:
Click here for a video showing the building of an ATLAS LEGO® model alongside the real version!
Click here for the website of ATLAS LEGO® model creator Sascha Mehlhase.