Question: fun things to do in vegas on your 21st birthday?
Answer: Stay in Style. First things first, make sure you book your stay at a party-worthy Vegas hotel. ... 
Visit a Pool. ... 
ARIA Brunch. ... 
Gamble. ... 
Unique Dining. ... 
Enjoy a Thrill. ... 
Raise a Glass on a Rooftop Bar. ... 
Tour the Nightclubs.