Bellagio features a million-dollar water-shooting fountain called the Water Show, the Mirage features a million-dollar fire-spitting fountain called the Volcano Show. Essentially, it is a large fountain with a larger-than-life molehill, where water continuously overflows from the top like a waterfall. Periodically after dusk, water and fire alternatively and simultaneously burst from the top of this molehill as if a volcano is erupting, with spotlights of color red shining upon the waterfall and hidden loud-speakers thunders in sync with the burst. It is pretty crass.
2011-08-26: If you are interested in the sensual stage performances of Cirque du Soleil, check out the The Beatles LOVE. (see Wikipedia here: The Beatles LOVE by Cirque du Soleil.)
A ostensible feature of Mirage is the Siegfried ＆ Roy magicians with their albino tigers show. On one side of the long hallway leading to the hotel lobby is a plexi glass, as if you are walking in a undersea tunnel of some marine park. On the other side of the glass is luxurious landscape adorned by tigers. (although i didn't see any at the time. This is just 3 weeks after Roy was bitten by one of his tiger in 2003 during his show. There is a little corner on the street outside of Mirage where people are piling up flowers for Roy.).
The northern neighbor of the Mirage is the Treasure Island. As of 2003-10, it is going thru a transition from being a children's heaven to adult heaven, by de-emphasizing pirates and emphasizing sirens, and abbreviating its name to simply “ti”. It has a big exotic fjord facade waterfront with several pirate-looking ships, but at the time was sealed and covered with tarpaulin. Photo on the right shows a ad of ti in a local mag Las Vegas Weekly. Across from Treasure Island is the venerable classical beauty Venetian.