The news is flying about here in Toronto about a proposal to build another ice hockey arena. It will be "the biggest one in the world". That's awesome.
Now. Make it with an Olympic-sized ice surface. The current NHL standard of 200 x 85 feet makes for restricted play. (Actually, that's been the standard ever since I can remember.) The Olympic, or International, dimension is 15 feet wider, making the total 100. Fifteen extra feet so players can actually make their way down the ice. (What a concept.)