Quiet places to walk around in?

I have a bit of a strange request.

I'm a bit of a homebody/introvert and usually take my dogs on walks in empty parking lots, sidewalks around light industrial areas/business parks, or less popular hikes. We like to walk for a couple hours so the bigger the better. My favorites are a trail behind Stone Brewing (Esco), the Santee Boulders, around The Wall Climbing Gym, or even the local mall or Costco parking lot when it's closed.

I like walking around quiet places where there isn't too much human activity going on, yet still safe enough to be in. It probably sounds weird but it's my way of decompressing. I love liminal spaces. Any suggestions are very much appreciated.

Thanks!