Here’s a free print-and-play map of a tavern for your wargames. I’m thinking it would be great thing for my highwaymen and smugglers games.
To go with the tavern, you can get the wine cellar.
Dramascape has a free medieval market pdf.
As the quality and diversity of cardstock models increases, here’s a nice tutorial on making them.
If making a watchtower from scratch is a little above your modeling skills, you might be interested in these very nice paper model watchtowers.
Here’s a nice paper model of a backcountry hillbilly or cajun grocery, bait, ammo and beer store.