Jim Kay's illustration is a cornucopia of Diagon Alley places in a row. The details are abundant and it now features as our community's banner.
The site I extracted it from allows you to look at the details closely - and has a related challenge:
Unlock activities by finding these items. When you have found them all, you will receive a magical certificate.
A red dragon with a book and quill
A sea-faring unicorn
A witch and a Golden Snitch
A potted sunflower
An elephant and castle
A white cat on a roof
