Question: fun things to do with a baby in las vegas?
Answer: Discovery Children's Museum. Plan to spend at least a few hours at the Discovery Children's Museum, located just north of The Strip. ... 
The LINQ Promenade. ... 
High Roller. ... 
Fremont Street Experience. ... 
Shark Reef Aquarium at Mandalay Bay. ... 
Mandalay Bay Beach. ... 
Circus Circus. ... 
Downtown Container Park.