LEGO Architecture Willis Tower (21000) Interpretation of real-world architectural landmark Willis Tower Booklet included with details on design and history (English language only. Other languages available for download) Measures 9" (22.8cm) tall, 3.1" (8cm) wide and 2.5" (6.4cm) deep Collect the entire Landmark and Architect series sets LEGO Architecture inspires future architects, engineers and designers as well as architecture fans around the world using the LEGO brick as a medium for reproducing esteemed structures