My names J and I am from Sydney. I have mainly just done train tunnels and rooftops but I am getting into drains and bridges because them other two are getting quite heated and boring. I know where fortress grille is but I don't want that to be my second drain or else every drain I will do will be nothing compared to fortress. So that why I need you guys to recommend some drains or any other cool spots to me.
Any replies appreciated

-J