Slip aR$20 bill between your ID and credit card and ask clerk if there are any complimentary upgrades available. There must be more to it than that, you're thinking.

The Mirage Volcano is an iconic volcano sculpture that amuses guests and passersby with nightly eruption shows of sky-illuminating fire and music at The Mirage hotel and casino. Las Vegas is a city of strange and wonderful things, and the Mirage Volcano is one of the most explosively entertaining sights.