4.) T-Mobile Arena previously hosted Frozen Fury
In case you don't know what Frozen Fury is, it was an annual pre-season hockey game in a non-hockey city. The Los Angeles Kings were hosts of this traditional event, going to cities like Salt Lake City to spread the influence of hockey. It's safe to say that influence has done well, for it brought two new teams to the NHL.
The Utah Hockey Club is the most recent "expansion" team to make its way to the league, where Delta Center was the previous host of the event. However, T-Mobile Arena also hosted the event on October 7-8, 2016. That consisted of two games that featured the Dallas Stars vs. the Kings and the Colorado Avalanche vs. the Kings (the initial competitor in the challenge).
The Kings playing an integral role in the NHL's growth out west is something most fans didn't see coming. However, they've done an excellent job of developing interest in the sport with their pre-season games. In fact, they also did this with a pre-season match against the New York Rangers at Caesar's Palace on September 27, 1991.