Urban landscape, somewhat by necessity.
I have social anxiety disorder, so I can't even go to the grocery store without panicking. Even posting on the forum is stressful. However, a couple of times I month I can drag myself outside. Places I enjoy photographing include underground garages, dark alleys, abandoned buildings and construction sites. I like shooting at night, early morning, and when the weather is bad. Also, living in Utah, most businesses are closed on Sundays and everyone is in church so that can be a good time to go outside too. Basically, I'm more comfortable when there are zero people within a mile radius.