"Spomenik" is literally the word for "monument", right? Here's an article from 1849 mentioning building a Napoleonic monument, calling it a spomenik:
https://books.google.co.uk/books?id=rz8_AQAAMAAJ&dq=%22spome...
If you mentioned to another former Yugoslavian that you had drawn a picture of a spomenik, would it be implicitly clear that you meant one of these postwar memorials, or could they reasonably assume you meant, say, the statue of Bruce Lee in Mostar?