Seattle 2015 Wall Calendar Seattle wall calendar for 2015. The spectacular photography in this wall calendar captures the uniqueness of this vibrant Northwest city. 18 month calendar; July 2014 through December 2015. Measures 12 X 12 inches closed, 24 X 12 inches opened. Monthly grids are large enough to record daily tasks and appointments. Includes major holidays and moon phases. Includes free TravelDays App.