More imaginative POI Bases to explore?

I have found most of the bases are the same, which kind of lose the "exploration" feeling when you find a new one. Things like the abandon mine shaft are cool, but I would love to see tunnels go really far underground. Like 20 floors down etc, with more and more danger as you go further down. Like puzzle type sinareo's to open doors. More interesting loot scattered around, like a box of 80 reactor core's would probably impress a lot of people. 20 advanced cpu's. I think enemies that can attack...

More imaginative POI Bases to explore?