Gargoyles are designed to move water away from the side of a building. Often they are carved of stone and can be found on old cathedrals. I found these metal gargoyles in Krakow to be quite interesting.
When we visited Wawel Hill, we were impressed by the large variety of gargoyles around the complex. All were made of crafted metal. Several of them seemed shaped like dragons, some even having crowns on their head; others looked like monstrous birds.
Quite interesting decorations, even when viewed by silhouette.