We're learning about a true Boston icon: Fenway Park. According to author Glenn Stout, this baseball paradise "changed his life" — it also would have been unrecognizable to current fans back in 1912 when it opened. The ballpark's transformation over the last 100-plus years tells us so much about the city and its continued evolution. And don't you dare take its endurance for granted: There were moments when Fenway was in real peril, and it might be in the future, too.