For each thumbnail view of the RSNA headquarters office in Oak Brook, Illinois, three sizes of photograph — small (320 × 240 pixels), medium (640 × 480 pixels), and large (1024 × 768 pixels) — are provided to accomodate different sizes of monitor and different types of connection to the Internet. Users with modems may want to view a small image first to get an idea how long it would take to view larger ones on their computers.
