Vegas has some of the most beautiful man made and natural sights in the world. You can walk up and down the strip to see the pyramid at Luxor or the pirate attack at Treasure Island. Or if you prefer, you can go into the wild and see the Red Rock Canyon National Conservation Area. Either way, make sure you bring plenty of water.
There's plenty of hotels that know how to pamper their guests. Schedule a spa day and just treat yourself.
Vegas has the best collection of restaurants from around the world. Every famous chef has a restaurant here, from Emiril Lagasse to Mario Batalli. Or if you prefer just gorge at one of Vegas's famous buffets.
Take in a Show.
Every hotel has some sort of entertainment option here. You can take in a simple comedy show to an extravagant show from Cirque Du Soleil.
Vegas attracts money and where there's money, there'll be stores. It seems that almost every hotel has their own mall, from the forum shops at Caesars to the Miracle Mile at Planet Hollywood. Other places you can go to is Crystal's, Las Vegas Fashion Mall, and Las Vegas Premium Outlets.