Recent travelers said it's an impressive show, and best of all, it's free to enjoy. Every night between 7 and 11 p.m., the ground rumbles and the human-made mountain spews fireballs sky-high. The Mirage has earned a reputation among frequent Vegas visitors as one of the best places to gamble along the Strip for high rollers and thrifty betters alike. If you aren't a gambler or you've got kids in tow, the main reason to visit The Mirage is its massive volcano.