The American Embassy in Bratislava is guarded like a fort: not only is there a fence put up around the embassy, on the plaza in front of it pillars are preventing an attack with car bombs. (I'm now curious if the US Embassy of Vienna is equally guarded - if so then I didn't take notice of it.) But then Slovakia is a member of NATO while Austria isn't.
The strangest things of all however is the cowgirl guarding the embassy: