The Mixx at the Delano has this view of Las Vegas at night. One of the best "mostly" free views but it never hurts though to order a drink and enjoy it. Another great view is the view from the north end of the strip at Stratosphere, 1,149 feet high but this one will cost you $18. Closer to the ground you can't go wrong catching the Bellagio Fountains day or night for free. Lets hear your favorites!