(Photo: Little Free Library, UK)
The Little Free Library is a public service concept that began in Wisconsin and has swept across the world. People are building birdhouse-sized libraries, filling them with books, and leaving them in public places. Take a book, read it, and leave a book.
The UK's Little Free Library Project grew (you don't build a TARDIS, but grow one) this suprisingly roomy library. Despite its Gallifreyan orgin, most books inside are in English. It will tour Britain, bringing reading experiences across the country. Just listen for the signature womping sound of it materializing near you.