I think that this is the strangest position I have ever seen I a game I played:

I am technically down material but have a 5 pawn phalanx on the 5th rank!

What is the most interesting position you have ever had in a game? (without getting it intentionally, of course)

i think this would be the most interesting position i have reached.

the middle of this game is also really strange; my opponent ends up with tripled pawns on the f-file.