A 360° panoramic view from the top of Mt. Everest. It doesn't get much better than that.
And now for something completely different.
A fun little time-waster. You're presented with an image of some sort, and embedded somewhere in the image is a clue to the next image, which you have to find. As is often the case with these things, starts out trivially easy and gets progressively harder (more or less). The hardest ones took me about 2-3 hours to get; the easiest ones, a matter of seconds. But it's the sort of thing for which, if you get interrupted, you can simply save a bookmark, then come back to it later. It's really quite rewarding when you get some of the harder ones.