WTwin citiesWAlbury–WodongaWAmbos NogalesWApamea (Euphrates)WApamea (Phrygia)WBaarle-HertogWBaarle-NassauWBallybofeyWBluefield, VirginiaWBluefield, West VirginiaWBristol, TennesseeWBristol, VirginiaWBruck an der LeithaWBruckneudorfWCalexico–MexicaliWChinchwadWCtesiphonWDetroit–WindsorWEbenfurthWEl Paso–JuárezWHili, Dakshin DinajpurWJaigaonWKalyan-DombivliWLewiston–Clarkston metropolitan areaWLittle Rock, ArkansasWNorth Little Rock, ArkansasWMinneapolis–Saint PaulWNogales, ArizonaWNogales, SonoraWOpisWPhuntsholingWPimpriWPimpri-ChinchwadWRheinfelden (Aargau)WRheinfelden (Baden)WSan Diego–TijuanaWSeleuciaWEast St. Louis, IllinoisWStranorlarWTalsinkiWTexarkana metropolitan areaWTexarkana, ArkansasWTexarkana, TexasWTexhoma, OklahomaWUnion City, IndianaWUnion City, OhioWThomas D. WaldhauserWZeugma (Commagene)
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