Nope. :-)

I used to think (well, more blithely assume) so, back in ~high school... Turns out Nicaea is called İznik nowadays, and definitely not in the EU.



Etymological footnote: The "prefixed with εἰς, meaning 'to' or 'into'" bit (and, apparently, "let's drop the last syllable from the original name in stead") seems to be common practice with ancient Greek cities in present-day Turkey; cf Smyrna --> İzmir.