World Map Builder and OpenLock remix

I really liked the design of the World map builder idea: https://www.thingiverse.com/OfAMillionProblems/collections/world-map-builder
but I hated the joiners, they were just a bit too fiddly to print and easy to break, especially on smaller scales. Thus I split off the scenery and merged them to the top of OpenLock's system:
https://www.thingiverse.com/thing:1833963
I used the "I" model for a 25mm square size (becasue I prefer it to be more compact than 50mm). however it would not be hard to scale up to the larger size if required.

I organised them in a 3 x 3 collection, but it is easy to split off the tiles you want.