Done twice by an adult, last photo is proof that all pieces are accounted for. 500 piece panoramic jigsaw puzzle of the Great Smoky Mountains National Park sunset. Official NP merchandise bought at GSMNP Visitor Center, brand is Impact Photographics. Comes with reference poster, puzzle in great condition! pieces are funky shapes which made this puzzle really fun! I’m selling quite a few puzzles, to make room for more, so always open to reasonable offers (: