The LINQ Promenade is definitely a cool spot to see in Vegas because of its unique atmosphere. They have a variety of shops and restaurants here that are interesting to go into. One of the highlights I can say is 12AM Run, which is a street wear clothing store that sells shoes too and sells a variety of street wear clothing and is owned by famous rapper Nas.
They also have the Brooklyn Bowl, which is a concert place and also a bowling alley although a little bit pricey.
The LINQ High roller is the giant Ferris wheel structure. Cool to see once but after that you probably won't want to do it again.
A lot of restaurants here that are awesome to eat and drink at. Tilted Kilt is a cool place, and plenty of others where there are various happy hours so make sure you get a deal on your drinks.
It's accessible from the Flamingo, which has a mini zoo inside of that casino which is a plus if you want to do some sight seeing with the family for free!
It is kind of a bummer that they don't offer anymore free parking right behind the Ferris wheel..... closest place to park for free and check this place out is probably planet Hollywood which is a it of a walk!