yeah! I've done some geocaching (or even just walking around exploring) while on my travels, and have very often encountered these "leave one, take one" type of free libraries along the way. It's really interesting to find different types of books depending on the area - the small town on an island of course has all these books on marine travel, sailing, that sort of stuff, for example. Nice way to get a little extra idea of the area and its culture, sometimes.

I've seen several book boxes in Brisbane, Australia, but neither one that I know the location of has been registered as a little free library.

There are about a half dozen around my neighborhood. My daughter and I constantly move books in and out of them to keep them fresh on our walks.

Sometimes they’re great; but, oftentimes I find them to be utterly and completely devoid of anything interesting or different. Almost every single one has some sort of religious spam in it.

in NA we have to call them "free libraries" because the concept of not having to pay for something is so rare, it has to be clearly indicated upfront! (joking lol, mostly!!)

i build lil free libraries and bird houses to get rid of my scrap wood. it's a fun limitation on the project that often makes ya think outside the box, so to speak.