A 360 degree panorama from Badwash Basin, Death Valley.  The lowest point in North America - 282 feet below sea level.  This picture was taken by setting up a perfectly level tripod and taking a series of photos with about 1/3 overlap.  The pictures are then stitched together to form a panorama.  Next you need to carefully crop so that each end perfectly matches - including the horizon.  Then the polar filter is used to make the little planet.