This 500-piece jigsaw puzzle features a painting of the beautiful Pena Palace located in São Pedro de Penaferrim, in the municipality of Sintra, Portugal. The Big Ben line of jigsaw puzzles feature high-quality cardboard pieces that snap together firmly for a great fit that lasts. Jigsaw puzzles are a great way to challenge your problem-solving skills and are a fun activity for the entire family. Measures 18" x 24" when complete.