I often gm some Call of Cthulhu for friends. Making maps has always been a hassle, but this software is so great it's just a pleasure to make them ! Here are three maps i created with it and some (a lot of) assets i found online (some look really ugly because reducing their size also reduces their quality :/)

Basically I made my players wake up in coffins inside the cave, and then having to find their way while discovering some story about how wife of this house went mad after her husband died, impersonated him and started to do some rituals and sacrifices that invoke a lot of monsters around. The final fight in the church was against a big monster created from the body inside the coffin (the husband), becoming some sort of zombie (think Solomon Grundy) because of a malicious deity. This zombie grew more and more as turn passed and finally exploded, ending the scenario.

Hope you will like it !