This box is a geocache. You could open it only with a travel bug.
Two versions are shared, one with a flat roof, the second with a pointed roof like an hotel.
The geocache is made of 3 parts, the box, the lid and the lock.
In addition, you will need a spring for latch bolt and super glue
Demonstration : https://www.youtube.com/watch?v=TqOsLIHD1Bs
Tip me if you like, so i can buy fillament and design more things