Chicago’s Wrigley Field is about to turn 100 years old. The Chicago Cubs have called this stadium on the North Side, with its famous manual scoreboard and ivy-covered outfield walls, home for 98 years. Named for one-time Cubs owner and chewing gum magnate William Wrigley Jr., this famed ballpark has been fiercely protected from change by its city, its owners and its fans. Lights were only installed in 1988, long after they became a fixture in every other professional park. To this day, Cubs night games are limited in number. There have been minor changes throughout the years, mainly to accommodate more seats. Wrigley was originally constructed for about $250,000. Even adjusted for inflation, that number would still be less than $6 million in today's dollars.