🇳🇱 🇧🇪 Baarle-Nassau / Baarle-Hertog
🇩🇪 🇩🇪 Berlin
🇸🇰 🇦🇹 Bratislava / Engerau
🇧🇦 🇭🇷 Brod / Slavonski Brod
🇺🇸 🇨🇦 Buffalo / Fort Erie
🇫🇷 🇧🇪 Comines
🇨🇦 🇺🇸 Coutts / Sweet Grass
🇺🇸 🇨🇦 Detroit / Windsor
🇩🇪 🇵🇱 Frankfurt an der Oder / Słubice
🇨🇭 🇫🇷 Geneva / Annemasse
🇱🇹 🇱🇻 Germaniškis / Skaistkalne
🇮🇱 🇱🇧 Ghajar
🇷🇼 🇨🇩 Gisenyi / Goma
🇮🇹 🇸🇮 Gorizia / Nova Gorica
🇩🇪 🇵🇱 Görlitz / Zgorzelec
🇫🇷 🇩🇪 Grosbliederstroff / Kleinblittersdorf
🇫🇷 🇧🇪 Halluin / Menen
🇭🇰 🇨🇳 Hong Kong / Shenzhen
🇪🇸 🇫🇷 Irun / Hendaye
🇮🇱 🇵🇸 Jerusalem
🇨🇭 🇩🇪 Laufenburg
🇹🇬 🇬🇭 Lomé / Aflao
🇲🇨 🇫🇷 Monaco / Beausoleil
🇧🇦 🇭🇷 Mostar
🇪🇪 🇷🇺 Narva / Ivangorod
🇺🇸 🇨🇦 Niagara Falls
🇺🇸 🇲🇽 Nogales
🇰🇷 🇰🇵 Panmunjom
🇨🇭 🇩🇪 Rheinfelden
🇺🇸 🇲🇽 San Diego / Tijuana
🇩🇪 🇫🇷 Saarbrücken / Forbach
🇪🇪 🇱🇻 Valga / Valka
🇸🇰 🇺🇦 Veľké Slemence
Bristol, TN / Bristol, VA
Columbia / Portland
Marydel, DE / Marydel, MD
New Hope / Lambertville
New York / Jersey City
Philadelphia / Camden
Washington / Alexandria

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🇧🇷 🇺🇾 Aceguá
🇩🇯 🇾🇪 Al Noor City
🇯🇴 🇮🇱 Aqaba / Eilat
🇦🇿 🇮🇷 Astara
🇩🇪 🇵🇱 Bad Muskau / Łęknica
🇦🇹 🇸🇮 Bad Radkersburg / Gornja Radgona
🇷🇺 🇨🇳 Blagoveshchensk / Heihe
🇨🇬 🇨🇩 Brazzaville / Kinshasa
🇺🇸 🇨🇦 Calais / Saint Stephen
🇧🇷 🇺🇾 Chuí / Chuy
🇵🇱 🇨🇿 Cieszyn / Český Těšín
🇮🇹 🇨🇭 Como / Chiasso
🇺🇸 🇨🇦 Derby Line / Stanstead
🇦🇪 🇴🇲 Dibba Al-Fujairah / Dibba Al-Baya
🇺🇸 🇲🇽 El Paso / Ciudad Juárez
🇩🇪 🇵🇱 Forst / Zasieki
🇷🇴 🇧🇬 Giurgiu / Ruse
🇦🇹 🇨🇿 Gmünd / České Velenice
🇩🇪 🇵🇱 Guben / Gubin
🇩🇪 🇳🇱 Herzogenrath / Kerkrade
🇩🇪 🇨🇭 Konstanz / Kreuzlingen
🇮🇳 🇧🇩 Hili
🇮🇳 🇧🇹 Jaigaon / Phuntsholing
🇲🇾 🇸🇬 Johor Bahru / Singapore
🇦🇿 🇮🇷 Julfa / Iran
🇰🇬 🇺🇿 Kara-Suu / Qorasuv
🇨🇳 🇰🇿 Khorgas / Qorgas
🇸🇾 🇹🇷 Kobanî / Mürşitpınar
🇭🇺 🇸🇰 Komárom / Komárno
🇩🇪 🇵🇱 Küstrin-Kietz / Kostrzyn nad Odrą
🇺🇸 🇲🇽 Laredo / Nuevo Laredo
🇨🇴 🇧🇷 Leticia / Tabatinga
🇰🇪 🇪🇹 Moyale
🇨🇾 🇹🇷 Nicosia
🇲🇾 🇹🇭 Padang Besar
🇫🇮 🇸🇪 Pello
🇪🇸 🇫🇷 Portbou / Cerbère
🇲🇦 Rabat / Salé
🇵🇸 🇪🇬 Rafah / Rafah
🇸🇾 🇹🇷 Ra’s al-’Ayn / Ceylanpınar
🇺🇾 🇧🇷 Rivera / Santana do Livramento
🇨🇭 🇫🇷 Saint-Gingolph
🏴󠁧󠁢󠁥󠁮󠁧󠁿 🏴󠁧󠁢󠁷󠁬󠁳󠁿 Saltney
🇭🇺 🇸🇰 Sátoraljaújhely / Slovenské Nové Mesto
🇺🇸 🇨🇦 Sault Sainte-Marie
🇲🇲 🇹🇭 Tachileik / Mae Sai
🇸🇾 🇹🇷 Tell Abyad / Akçakale
🇸🇪 🇫🇮 Torneå / Tornio
🇸🇩 🇨🇫 Um Dafuq / Am Dafok
🇧🇦 🇷🇸 Zvornik / Mali Zvornik
Bristol
Kansas City
Luke / Piedmont
Texarkana
Texhoma
Union City