I was killing time, using StumbleUpon (if you want to make massive chunks of your life disappear, install the StumbleUpon plugin for your browser). A photo of a nude woman came up (NSFW, so I'll only post a link to it rather then embed it in my post). As I looked at the surroundings of the photo, I realized that it looked very familiar.
Now, because I've held several travel jobs, during my adult life, and have spent a crap-ton of times in a lot of different hotels in the US, Canada and Europe - mostly Marriott properties. So, either I've been to the hotel where this picture was shot, or it was shot in one of the chains I've stayed in. I think it's more likely the latter. The interesting thing with the photo is that it appears to have been taken in one of the lobbies of whatever hotel it was taken in. The photo has no EXIF data with it, so, can't verify that it was taken "after hours". Would have been funny had it been an after hours shoot and a guest happened to stumble down through the area on the way to trying to buy something at the front desk's shop ("sorry: was just looking for a new toothbrush").