The Enzo code is frequently used for simulations of cosmological structure formation. As a result, it's often useful to have images and movies of various aspects of this sort of simulation, including the adaptive mesh grids. A variety of images and movies are available from this web page.
Local Group zoom-in simulation
Large volume simulation
Attribution: if you choose to use any of the movies or images on this site, please use the attribution: "(c) Brian O'Shea (MSU) and the Enzo Collaboration, 2015"