Take puzzles to new heights and Go 3D! Build the Sydney Opera House 3D puzzle in 3 steps: Sort the pieces, assemble the flat sections then go 3D! Includes 925 puzzle pieces, each backed with 1/4" of foam for a sturdy, impressive 3D model. Also includes an illustrated assembly booklet in English, French and Spanish. ?How to? videos, additional color instructions and missing pieces all available though Wrebbit. 22.25? x 17.25? x 8.75? fully assembled. Made in North America. The Sydney Opera House is one of the most recognizable architectural structures in the world. The design is a result of a 1957 international competition, won by Danish architect Jorn Utzon. The building officially opened in 1973, became a UNESCO world heritage site in 2007 and is host to over 1500 performances annually.