I KNOW THIS HAS BEEN ASKED ALOT. But for those who have played it and found any, please list the buildings we can go in. And if you have progressed far through the storyline do interiors become unlocked? Im sick of all these little threads asking one question about them, someone should make a list of all the interiors and be done with it. I know it may take a couple days to find all them. Please dont list ones like 24/7 stores or clothing/tattoo shops ect.
Thanks to TheFlush for all these discovered so far.
The Kortz Center- north west of Los Santos is enterable. It's a pretty big mall or so it seems, looks like a fun place to have multiplayer matches. While the mall itself is mostly outdoors, you have to enter through the glass doors and go through a space with a couple ATM machines. The mall features terraces, lot's of stairs and bridges and roofs you can climb onto. Behind that mall is a hedge maze.
Villa construction site- Dunstable lane. Northwest of that tall tower in the north Rockford Hills.
Huge building construction site- in between Del Perro Freeway and the hairdresser in the south of Vinewood. When you zoom in on the map, the area pointer says 'ALTA'.
Huge construction site #2- It's the incredibly tall tower that's under construction. It's located at the Adam's Apple Blvd just north of the Olympic freeway in the DownTown area. If you go up in the lower building, you can get into the tower through a bridge structure on the roof. Unfortunately, you cannot get higher up into the tower from that point, because all the stairs are locked behind fences. (Note) there may be another way in. Good place for multiplayer matches.
Land Act Dam- in Tataviam Mountains has a room and small passageway (downstairs) you can enter. There's also a parachute in one of the rooms if I'm not mistaken.
Abandoned Motel- Sandy Shores, Panorama Drive. It's quite big and some of the rooms don't have doors so you can enter them. Everything is trashed and demolished. The roof has collapsed and you can use the rubble to go outside onto the roof.
Vinewood Racetrack- in East Vinewood. It's not much, but you can climb the fence and go inside to the seating area and the race track.
24/7 Supermarket Locations
Chumash, Barbareno Road (along the westcoast).