This is my take on Boareskyr Bridge in The Forgotten Realms. I think I've made a decent attempt at following the lore, with a bridge made of black stone with giant statues of opposing gods on opposite banks.
I intend this as a good ambush point with adventurers confronted on the middle of the bridge with enemies front and rear, archers on the rocky bluffs and probably something flying, too, just to keep things interesting. I'm going to use this as the cult's first assassination attempt in Rise of Tiamat - don't tell my players :-)