Historic Sites: This cozy stadium's friendly atmosphere asserts strong appeal for Chicago Cubs fans. First opened in 1914, the facility boasts ivy-covered brick walls in the outfield and a manual scoreboard that helps promote a good-old-days ambience. The place is such a local legend that any visit to Chicago must include a day at "the old ball game." And just to avoid potential heartache: any home run ball hit by the other team must be thrown back onto the field. Tours, on days they're scheduled, are offered from 9:30am till 4:30pm.