Croatian term (edited): civilizacijsko trome�e

Something like this, depending on the context.

Croatian term (edited): civilizacijsko trome�e

His birthplace was the meeting point of three civilizations—Oscan, Greek, and Latin—and Ennius learned to speak the languages of these cultures.
http://www.encyclopedia.com/html/E/Ennius-Q1.asp

He lived at the meeting-point of three distinct civilizations: the decadent civilization of Greece, of which Athens was still the centre; that of Carthage, which was soon to pass away, and the nascent civilization of Italy, in which all others were soon to be absorbed.
http://www.theatrehistory.com/ancient/terence004.html