In January 2016, there was the world's largest indoor model railway meeting with 5 inch and 7 1/4 inch steam locomotives. It's the worldwide largest indoor 5 inch layout with a total track length of almost five kilometres. And, there is a combined 5 gauge and 7 1/4 gauge track layout for the Big Boy locomotives. Please, enjoy these driving men on their steaming machines.
Actually, there are more than 250 videos about model railroading and railway modelling, for example, on Dailymotion and YouTube. Please, visit also Pilentum's Facebook site.