This is alist of fortifications past and present, afortification being a major physical defensive structure often composed of a more or lesswall-connected series offorts.
Limes Moesiae - defensive frontier system inSoutheast Europe, a collection ofRoman fortifications between theBlack Sea shore andPannonia, present-day Hungary, consisting primarily of forts along the Danube (so-calledDanubian Limes) to protect the Roman provinces of Upper and LowerMoesia south of the river
