Highway- A big 2-lane highway like the equivalent of I-91 in IRL New England which goes North to South on the map. Tons of stopped cars, trapped zombies, etc. Really dangerous.
Machine shop- Has hobbyist mills, lathes, etc. for more precise machining.
High Tech Factory- Think civilian adjunct factories attached to the military bases we have in the real world, especially on the East coast (Northrop Grunman, Raytheon, Halliburton, etc.) All robots and high tech stuff all the time. It’d be located out in the boonies with several tough roadblocks though (just like IRL) and also attached to a military base.
Zoo/aquarium- Self-explanatory. Zombelephant? Mutated Monitor Lizards? Zomborca? The sky is the limit.
Synagogue- Zombie Jews, oy gevalt!
Mosque- The souls Allah forgot.
Gun store/gunsmith- There are more than a few gun stores that have in house gunsmiths. You could find ammo presses, mills, chambering/boring tools etc. here.
Sushi bar- Self explanatory. You could find Japanese weaponry at the back
Television studio- Self explanatory. Lots of useful electronics to salvage and scavenge
Dam- A damn dam.