If you meant "western" in the sense of "most European", then it's probably Berlin.
Otherwise, if you meant "western" in the sense of "most cosmopolitan", then New York would be the one.
Carson City Nevada
The Western most city in Romania is Deta.
western
The most western point in the US is called East Quoddy Head.
western
western
Kabul
mumbai
Maarianhamina.
brest
Western
Western Hemiphere.