So I got a couple ideas just sitting here:
OOOOO
OOOOO
OOOOO
OOOOO
OOOOO State Park
Big, open area with some trees, some paths, maybe a food stand. Alternate version that’s got a lake, another alternate version with a large statue or monument in the middle, should have a gift-shop of sorts, third version with several small hobo-villages in it. Mayhaps a Triffid/Marloss/Bee infected variant(s)? Small number of zombies, lots of zombie dogs but none of the ‘advanced’ variants (Rot-Wilers, Skeletal Dogs, Z-9s)
OO
Ov Car Dealership/Rental Agency
Mostly parking lot, at least one fully functional, undamaged, but unfueled car somewhere in the lot. Security system, vending machines. Rental agency variant should have on-site mechanic.
. . |. X
. . |. .
—±-
XX|. .
XX|. . Airport
Fenced in area, lots of robotic security, possibility for an “ending” area. (Find helio, fix it, fuel it?) Gift-shops, clothing stores, restaurants, that kind of thing, in the airport itself. ATMs, vending Machines, bathrooms, lost luggage. Underground luggage area.
Mansion, Cabin, and Gas Station Lab/Bunker Entrances.
Basically, at first glance it’s a normal Mansion, Cabin, or Gas Station, fully functional one at that even. Upon closer examination a hidden room has an access path to a lab, preferably the variety that does less than legal things.