In the summer of 2004, the Exploratorium museum in San Francisco unveiled their very ambitious and interesting microscope facility. Over the past few years they've spent a considerable amount of time and money on this project, and they've also created this fine website to offer those far away from the Bay area some access to this project. First-time visitors will want to click on the "Features" area to get started. Here they can look at the cells of sea urchins, blood, zebrafish, and frogs. Each feature has images of the cells, along with complete background material on the work that is being done through the use of these high-powered images. The "Gallery" is a great place to stop next, as it contains dozens of high-resolution images and movies created with research-grade microscopes. Here visitors can learn about cell motility, development, and immune response through looking over this extensive gallery that covers the gamut of different cellular activities. Finally, the site also contains an "Activities" area that includes classroom activities, printable flipbooks, and desktop wallpaper.