Madril: berrikuspenen arteko aldeak

* {{banderaikur|Serbia}} [[Belgrad]] ([[Serbia]])

* {{banderaikur|Hungaria}} [[Budapest]] ([[Hungaria]])<ref name=":0" />

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* {{banderaikur|Belgika}} [[Brusela]] ([[Belgika]])<ref name=":0" />

* {{banderaikur|Italia}} [[Erroma]] ([[Italia]])<ref name=":0" />

* {{banderaikur|AEB}} [[Maui]] ([[Hawaii]]) ([[Ameriketako Estatu Batuak]])<ref>{{Cite web|url=https://user-2221582232.cld.bz/2018-Annual-Report-and-Membership-Directory/46/|izenburua=Sister Cities International|sartze-data=2018-08-08|egunkaria=|aldizkaria=|abizena=|izena=|egile-lotura=|hizkuntza=en|formatua=}}</ref>

* {{banderaikur|Errusia}} [[Mosku]] ([[Errusia]])<ref name=":0" />

* {{banderaikur|Espainia}} [[Móstoles]] ([[Espainia]])

* {{banderaikur|Mauritania}} [[Nuakxot]] ([[Mauritania]])<ref name=":0" />

* {{banderaikur|AEB}} [[New York]] ([[New York (estatua)|New York]]) (Ameriketako Estatu Batuak)<ref name=":0" />

* {{banderaikur|Frantzia}} [[Paris]] (Frantzia)<ref name=":0" />

* {{banderaikur|Txekia}} [[Praga]] ([[Txekia]])<ref name=":0" />

* {{banderaikur|Maroko}} [[Rabat]] ([[Maroko]])<ref name=":0" />

* {{banderaikur|Bosnia-Herzegovina}} [[Sarajevo]] ([[Bosnia-Herzegovina]])<ref name=":0" />

* {{banderaikur|Bulgaria}} [[Sofia]] ([[Bulgaria]])<ref name=":0" />

* {{banderaikur|Libia}} [[Tripoli]] ([[Libia]])<ref name=":0" />

* {{banderaikur|Polonia}} [[Varsovia]] ([[Polonia]])<ref name=":0" />