What plant covers the outfield walls at Wrigley Field?

Which young fan famously reached over the wall to catch a Derek Jeter fly ball in the 1996 ALCS? Which ballpark is the oldest in MLB, opened in 1912? Which ballpark, opened in 1914, is the second-oldest in MLB? What is the name of the tall left-field wall at Fenway Park? What is the name of the area at Yankee Stadium that honors team legends? What was the original Yankee Stadium nicknamed? What is the name of the body of water beyond the right-field wall at the Giants' ballpark in San Francisco? Which ballpark has a row of purple seats marking one mile above sea level?