What's the most public place you've had sex

Blowjobs:
Balcony of our room at a Caribbean resort overlooking the pool area. She knelt behind the wall and I faced out watching the other guests mill about.
Driving on the interstate.
On the shoulder of the interstate.
In a parking lot of a closed business at night.
In the supply closet of the gymnasium of a school she was substituting at.
In the sauna at our local gym.
In the parking lot of said gym.
In the wooded area down the road from our house. (She took a facial and did a cum walk home).
In the dressing room of a clothing store.
Standing on the shoulder of a residential road, beside my vehicle, in a neighborhood, in front of a friend's house.
On a friend's couch, in their house, while they were in the kitchen making dinner.
In my vehicle in a parking deck prior to a concert.
On a boat, in the middle of a crowded lake.
To name a few!
 
Recently my wife has been opening up to me more about her past sexual experiences. The other night she told me about how her ex fucked her on a hotel balcony. Another time he pressed her up against a hotel window.

He's a bigger guy than me and could no doubt throw her around a bit more. I'd say he's probably got a bigger cock too. She's certainly never done anything like that with me.

The morning after when I mentioned it to her she stuck her ass out and pressed it against my crotch and with a smile she looked back and said "he did me like this"

Needless to say I get rock hard thinking about her bent over a balcony rail getting her hair pulled and ass slapped by him