Educational 4D puzzle of Washington, D.C. Has 1100 pieces and assembles in three layers. Shows famous landmarks around D.C. Great challenging but fun thing to do over the holidays or to keep your kids busy over student snow days. The layers represent a time sequence according to the years each building was built, starting from the year 1792. Brand new. Packages of pieces are still unopened. Great Christmas present for puzzle aficionados, history buffs or any kids 12+. Selling for $10/cash only. Southern Walk townhomes.