In The Lion, the Witch and the Wardrobe (2005), if you look closely at the lamppost, you can see it has roots, like a tree. This is because in the Narnia books,
Art of Narnia
Will the Real Lamppost Please Stand Up
Narnia Lamp Post by Narniakid on DeviantArt
Narnia lamp hi-res stock photography and images - Alamy
File:Narnia Lamp.jpg - Wikipedia
Lamp Post in Winter stock image. Image of trees, park - 111474201
Lucy by the Lamp-post - Narnia Fans
Narnia Lamp Post - Etsy Israel
Narnia Lamp Post, Gresham - ScenicOregon.com
Lucy And The Lamppost - Narnia Jim Salvati 100% Hand Painted Oil Painting Repro Museum Quality Gift - Painting & Calligraphy - AliExpress
Narnia Lamp-post Sweatshirt | The Lion, the Witch and the Wardrobe - Storiarts
Lamp-post | The Chronicles of Narnia Wiki | Fandom