I haven't been to a lot of places in this world, but the best place I ever visited has to be California. I have some family out there, spread out in San Diego, Los Angeles, San Fransisco, and Oakland, and I loved all those places. I especially liked the beaches (Newport, Laguna, and Huntington Beaches in Orange County, and Venice Beach). I was there a few years ago for 4 weeks, spending a good amount of time in each city. No, I did not spot any celebrities in Hollywood, but I did check out all the stores they buy from!
During the same trip I also visited Death Valley National Park, in the middle of the Mojave Desert, specifically
Badwater Basin, during one of the hottest summers recorded there. On the day I was there the temperature was approximately 130'F, and dry as hell. I thought I was going to burn up!