The Boston Red Sox' website has an interactive seating chart of Fenway Park, as of 2015. The chart not only shows an overhead view of Fenway, but it also gives a view of what ticket holders see from their seats.
The seats above the left-field Green Monster fence, known as the Monster Seats, are at the bottom of the Fenway Park picture. The right-field bleacher seats are to the picture's left.
The chart also provides ticket prices by scrolling over a section. Depending on the level of seating, bleacher seats cost $22 to $42 for the 2016 baseball season. Tickets for Field Box seats, located behind home plate and along the first- and third-base lines, are $110 to $180.