The most playful libraries in the world!

Something to appeal to your inner-child on a Friday afternoon - take a look at some of the imaginative designs in libraries and reading spaces from across the globe, which is your favourite?

http://flavorwire.com/386005/the-most-playful-libraries-in-the-world/view-all

For me, I love the quirky idea of a slide in a library, equally the birdcage hideaway!