New York city
I believe the answer is:
rome
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">new york city</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rome that I've seen before include "When there, do as the native do" , "Seat of Italian empire" , "Italian city" , "The Eternal City" , "All roads lead to it" .)