While my brother was still here, we had a trip to the Children's Discovery Gateway up in Salt Lake.  We decided to take Trax over to Temple Square so we could walk through to my Dad's work. 
He works at the Church Office Building.  We ended up having quite the little group to get on the train. 
Once we met up with my Dad, we ate in the cafeteria at his work.  It's so fun to have so many decent options to pick from for lunch there.  Once we had lunch, we went back via Trax and played some more. 
The kids had a lot of fun and we have actually been back a few times since.