This weekend I worked on building my Christmas present, Lego’s Shuttle Adventure (set #10213). This set contains 1204 pieces, 2 instruction manuals totaling 150 pages, and is recommended for users age 16+. By far, this is the most complicated Lego set I have ever built. Even with the help of others, it still took almost 4 hours to complete the construction of all the components. I have built many lego sets over the years, and this is probably my favorite.