Impossible Skate Parks Art Print

I'm having illusions...

When you look at the construction of these skate parks, everything seems to make sense, yet these figures are impossible. What's the catch? Perhaps it's the wondrous limitations of your own thinking...

• Item name: Impossible Skateparks Art Print
• Designer: Matzwart
  
• Size: A3 (297mm X 420mm)
• Material: Glossy metallic paper
  
• Shipped in sturdy tube