3. The Chuck Jones Experience at Circus Circus

Open in January 2012, the Chuck Jones Experience is truly an attraction for the young at heart. It showcases the work of the late animator extraordinaire behind such Looney Tunes characters as Wile E. Coyote and Pepé Le Pew. The permanent installation includes displays on the man and his work, a theater, a room full of 3-D cartoon-character sculptures, and a workshop where you can create your own sound effects and record voice-overs.

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4. Octavius Tower at Caesars Palace

Caesars Palace's 668-room Octavius Tower features its own entrance, a sports complex and luxurious guest rooms with all the trimmings. The January 2012 opening marks the completion of $860 million in hotel upgrades. And this is just an appetizer: Slated to open in 2014 is Caesars' Linq, an entertainment district with shops, restaurants and the world's largest observation wheel — the High Roller.

5. Fremont Street Flightlinez

See Glitter Gulch from a whole new vantage point when you soar over downtown Las Vegas on a zip line. Freemont Street Flightlinez originally opened in 2010 as a temporary attraction. A permanent structure, open in spring 2011, extends the ride an additional two blocks to Main Street. It's a hair-raising but safe experience for people of all ages.