Near 360-degree panorama from Mauna Kea. The observatory which, in this photo, is split in 2 (at both the right and left ends of the panorama) is the Canada-France-Hawaii Telescope, with a primary mirror diameter of 3.58 meters. The silver one to your left is the Gemini, an 8.1 m telescope with a twin in Chile (thus the name Gemini). The one with the "visor" sticking out from the top is the UH88, an 88-inch telescope owned by the University of Hawaii. Next (the small-appearing one just to your left from the furthest-left road) is the United Kingdom Infrared Telescope, with a 3.8 meter mirror. On top of the far hill is the Subaru Telescope (the national telescope of Japan). Then comes the twin Keck Observatories which, at 10 meters made each of them tied for the largest optical telescope in the world when they were built (now, I believe, they are tied for number 2). You can see Steve and Marsha then at the base of the Canada-France-Hawaii Telescope to your right.
This is a 19-photo panorama. You can get some pretty amazing detail if you bring it up to full size. To do this, hover your cursor over the photo and click on "Original" in the resulting pop-up menu. You can navigate using the scroll bars to the right and bottom of your screen. Clicking on the enlarged photo will return you to the SmugMug format album.