Being a sports fan you have probably developed a list of stadiums and arenas that you would want to catch a game at. What are the stadiums you would want to visit before you die? Ideally I would want to see them all, but here's a more realistic list of mine.
Rogers Arena
Madison Square Garden
Staples Center
Air Canada Centre
Yankee Stadium
Fenway
King Power Stadium
Camp Nou
Old Trafford
Any NFL stadium would be good enough for me