This is a question intended solely for the adult audience, both tagged as NSFW and with a NSFW warning in the title. I don't see a rule prohibiting those, and I hope it's allowed.

Not talking about rare because taboo, but ones people may not even ever think of when hearing "fetish".

I have a major fetish for... apartments. Housing. Generally interior of buildings. It's been born out of my socioeconomic situation and continues. I find the idea of having sex in a nice, non-claustophobic space extremely allouring. If I see a glimpse of a nice interior via a window, it's where my thoughts immediately go. I see a nice plant in the window? I fantasize about how good the rest of the place looks like and how hot it would be to do the do in it. Nice lightning? Same thoughts. Tall windows implying high ceilings and more space? Guess what... I thought I'd appreciate living alone, but my apartment is claustrophobic, which is something I thought I wouldn't mind, since I grew up in worse, but it affects my mental health. Fantasizing about having sex in more modern, more spacious places is not only an escapism, but actually turns me on a lot. I hate that most people don't seem to be able to host. I would probably give a chance to someone I otherwise wouldn't consider if they had a nice place - to picture how strong the fetish has become over time.

I'm curious about other people's. Share away.