The strip: Once you pass the famous "Welcome to Fabulous Las Vegas Nevada" sign, it won't be too long until you're cruising the Strip. the term is often used loosely to refer to the collection of hotels and casinos on or near Las Vegas Boulevard.
The Venetian Casino and Grand Canal: The Venetian replicates the highlights of Venice, complete with gondola rides along the Grand Canal. Visitors can get a taste of what life is like in venetian. Singers, stilt walkers and "living statues" recreate the typical scene you'd likely encounter in the real Venice.
Bellagio Casino and Fountains: Offers from table games and slot machines to a race and sports book. The Bellagio also have the massive fountains, Every 15 to 30 minutes, those walking past the Bellagio are treated to a complimentary light and water show with the fountain's jets shooting water into the air during intricately choreographed "dances".
Red Rock Canyon National Conservation Area: Seventeen miles southwest of Las Vegas, the Area offers travelers a respite from Las Vegas' unnatural neon landscape. you'll find yourself surrounded by the beautiful Mojave Desert and its signature red hills.
Cirque du Soleil: Is known for its incredible acrobatic feats, which are performed with an unrivaled level of artistry. Cirque du Soleil's performances are inspired by a variety of natural and cultural elements.
Source: http://travel.usnews.com/Las_Vegas_NV/Things_To_Do/