On the Las Vegas Strip, home of the biggest and most extravagant hotels in the world, shell-shocked tourists file past one stunningly ostentatious display after another. In the desert city, water says wealth like nothing else, and there’s a lake of it in front of the Bellagio, with fountains blasting 240 feet in the air in time to Broadway show tunes. Just up the street, the Mirage demonstrates that it has money to burn with a fiery volcano erupting from the top of a 119,000-gallon waterfall.