I made a thing today! Taking a page from Stacy Dellorfano's playbook, which the role playing community has come to call The Dellorfano Protocol, I created a random map with the use of two six-sided dice.
I rolled all doors from a d6: 1 for open door, 2 closed door, 3 and 4 as no door, 5 as no connection, and 6 as a secret door. I added a summoning circle to the secluded secret corridor and an underground river. I'm assuming that this is a section of a sprawling underground caverns occupied by many unsavory creatures.
The style of map-making shamelessly mimics Dyson Logo's. You should definitely check out his blog and his Patreon page, where you can donate and subscribe to his works of art! They're really amazing! The scanned images can be found here.