1. Trees and Belief Systems
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2. "The Ash Yggdrasil" (1886) by Friedrich Wilhelm Heine
"The Ash Yggdrasil" (1886) by Friedrich Wilhelm Heine. This is the ‘World Tree’ in Norse mythology. Public domain image.

3. This superb Green Man is carved into an old tree stump near to the Teversal Trails Visitors Centre in Nottinghamshire. Image © Copyright Sally Holmes and licensed for reuse under this Creative Commons Licence.