Wow you guys, I thought I had done pretty well in this category until I read all of your posts!
Okay let's see, I might forget some, but...
Cemetaries - lots of times.
In a median strip between two lanes of traffic. It was a wide one though, with a little stream and benches.
Inside the steeple of a catholic church.
In a laundromat, lots of times actually.
On a partially-sunken cement ship.
On the bleachers of our local high school in a pouring rainstorm.
On the stage at a community college.
In front of the stage at a university concert hall.
On the hood of my car by the side of the road with people driving by.
In the doorway of a building downtown.
On the fire escape of a building downtown.
In a jail cell.
I’m sure there’s more that I can't remember right now