Willis Tower

What there is most of

• Brick 1 x 3 · Black×12
• Brick 2 x 3 · Black×9
• Tile 1 x 1 with Groove · Black×7
• Brick 1 x 1 · Black×6
• Plate Special 1 x 2 with 1 Stud with Groove (Jumper) · Black×6
• Tile 1 x 6 with Groove · Light Bluish Gray×4
• Brick 1 x 2 · Black×3
• Brick 2 x 2 · Black×3
• Brick 2 x 2 Corner · Black×3
• Tile 1 x 8 with Groove · Black×3
• Antenna 1 x 4 with Flat Top · White×2
• Plate 2 x 2 · Black×2
• Plate 4 x 10 · Black×2
• Plate 4 x 6 · Light Bluish Gray×2
• Tile 1 x 2 with Groove · Black×2
• Brick Curved 2 x 2, Two Top Studs · Black×1
• Tile 1 x 4 with Groove · Black×1
• Tile 1 x 8 with 'Willis Tower' Print · Black×1

The twenty most numerous parts, longest bar first. Start a checklist to see all 17 part types and tick them off as you find them.