This page allows you to directly compare any two stadiums at the same time by superimposing their diagrams on top of one another. To make it easier to tell them apart, the "Reference stadium" is opaque (dark), and the "Comparison stadium" is translucent (pale). (The translucent visual effect in CSS is not supported by older versions of browser software.)
Pick stadiums from the scrolling menus on the right side 
below, and their respective diagrams will appear on the left side. Repeat as needed. (Requires Javascript.) Thanks to Donald Hector Estes, MD for the suggestion.
