The weirdest place i have ever masturbated would have been my principals office and then my English teachers bedroom. Me and my english teacher are fucking like crazy everywhere even at my colledge. she even did me in class.
I've done it hanging upside down in a tree. There was 2 branches I would wrap my leg over one and put my feet under the other so there was no chance of me falling. I've done it on the golf course at the tee box on the back side of the golf course, it's not a crowded course. I would take my shorts completely off to do it. One time on the fairway someone almost caught me I turned around and zipped up. He come up so close and I did not hear him. In a public lake with people all around me the water was dark and noone knew I did it.
Probably in a police holding cell, they keep the lights on all night so you can't sleep and you only have four walls to stare at, pretty much the only thing to do to pass the time.
On the summit of a mountain. I was by myself, it was a warm sunny day, so I took off my clothes and sunbathed, and then masturbated. Left a little bit of me on top.
Let's see...I've done it in the room with my mother present (no, she couldn't see me, she was deeply asleep, and we were in separate beds), in the school bathroom, on the charter bus coming back from a school-sponsored trip to France, and my personal favorite, watching a Broadway showing of Phantom of the Opera :&. That time, I tried doing it over my pants, just rubbing myself, but then I managed to slip one hand underneath and held a paper over myself with the other hand. It was such an amazing feeling, because I'd gotten myself thoroughly worked up, but doing it through my pants just wasn't enough, and when I first directly touched my clit, it was heaven. And it took me so long to do it (because I had to make the motion soft and slow and unnoticeable) that when it happened, it was mindblowing. I think I shook in the seat. ...Sometimes, things just can't wait. :H That's my only excuse.
Don't have time right now to read all replies - No place is weird as we all have our desires but unusual places or circumstances highlight the act. One evening after a number of drinks I hopped on the last commuter train to the suburbs all dressed up in my business suit. I fell asleep for a brief period of time and woke up hard as rock. I was in the last double seat up top which is somewhat blocked. There were a few people downstairs but I thought I was alone on the top level, both sides. I unzipped and dropped my underwear down - was having the time of my life when I felt someone was watching me. I sat up a bit and looked over to the other side of the train and there was a lady sitting in the same seat as I was watching. She seemed to be captivated, I smiled at her, and continued on as if she was not there - licking my fingers with pre-cum, using some as nice lube. After about 20 minutes or so I finished up eating my cum, leaving no evidence. After zipping up I heard a nice voice say "Thank You" - all I could say was "My Pleasure."