Fremont Street is definitely somewhere you need to experience while visiting Las Vegas. It's a little bit more low key than the regular strip. But boy, oh boy is it fun!!
They have a vine of just one giant street party. There are plenty of alcohol available, multiple stages of live performances, the beautiful ceiling likes (make sure to pay attention for when the light show starts, you won't miss it because all the other lights turn off).
It's a great fun place to walk around and sightsee. Everything is substantially cheaper over here as well including souvenirs, alcohol, gambling minimums, buffet, you name it!
While you're here to enjoy the experience make sure to also get some discounted souvenir to bring home, eat some buffets, and play a couple tables if you so desire.
On a side note I've had a blast simply walking around people watching and enjoying the live music.