Listed below are the eight largest cities that straddle O degrees longitude, otherwise know as the Prime or Greenwich Meridian. Included are those cities situated within one degree of the meridian.
- London, United Kingdom: 8,538,689 (2014)
- Accra, Ghana: 2,291,352 (2013)
- Bordeaux, France: 851,071 (2011)
- Valencia, Spain: 809,267 (2010)
- Zaragoza, Spain: 666,058 (2014)
- Tamale, Ghana: 562,919 (2013)
- Brighton, United Kingdom: 273,400 (2011)
- Peterborough, United Kingdom: 190,461 (2014)
SOURCE: en.wikipedia.org