According to a report from Boston.com, a 20-foot high sledding and tubing hill called the "Monster Sled" will be constructed at Fenway Park during a 2014 event for fans to slide down.
The hill will be placed near the Green Monster and will extend 75 feet, with five separate paths that end at the Red Sox's bullpen. An artist's rendering of the "Monster Sled" can be seen below.
The event, called the Frozen Fenway, will run from Dec. 28 through Jan. 13 and is available for hourly rentals.
Hat tip to Ted Berg of USA Today's FTW for the find.