"The truth is that even big collections of ordinary books distort space, as can readily be proved by anyone who has been around a really old-fashioned secondhand bookshop, one that looks as though they were designed by M. Escher on a bad day and has more
stairways than storeys and those rows of shelves which end in little doors that are surely too small for a full-sized human to enter. The relevant equation is: Knowledge = power = energy = matter = mass; a good bookshop is just a genteel Black Hole that knows
how to read. "
Under "Books & people", you'll find "go hunting". By default, this page only shows the places where books have been released the last 30 days (and the number of books released during these days). But you can tick "view all", to see every location where books have been released. All books that have been wild released there and haven't got a JE (journal entry) from a finder after that will then be seen when choosing a location (even if it says 0 book. 0 only means 0 books released there the last 30 days).
https://www.bookcrossing.com/---/1172 Seems that there weren't any books released recently. But since there are a few zones listed there must have been some activity at some time. You could get started with releasing books yourself? :-)