Everything that's awesome about the Everest Base Camp trek, only awesome-r! The Gokyo Lakes extension to your classic EBC trek gives you an incredible panoramic view of the Himalayas (including Everest!) from the top of Gokyo Ri. If you can spare there three extra days, there's no question. Do this.

But just when you think it can't get even better, do this trek with a monk guiding you! BOOM!