Callio

Yara International

Connects Callio to: Yorkshire and the Humber | Siilinjärvi, Finland | Glomfjord, Norway

circular economy

Connects Callio to: Tianjin | Amsterdam-Zuidoost, Netherlands | Nurmes, Finland

Sveriges Television

Connects Callio to: Sweden | Stockholm, Sweden | Umeå, Sweden | Eslöv Municipality, Sweden

Outokumpu

Connects Callio to: Yorkshire and the Humber | Eskilstuna | Tornio, Finland | Torshälla | Harjavalta, Finland

University of Oulu

Connects Callio to: Canada | Finland | Helsinki, Finland | Oulu, Finland | Enontekiö, Finland

Anglicisation

Connects Callio to: Isle of Man | Connacht, Ireland | Wicklow, Ireland | Scottish Highlands | Dingle, Ireland

pyrite

Connects Callio to: Bhutan | Guizhou | Huelva, Spain | Temagami, Ontario | Ouro Preto, Brazil

bedrock

Connects Callio to: New York City, New York | Slovenia | Western Australia | Kansas City, Missouri | Orlando, Florida

Pumped-storage hydroelectricity

Connects Callio to: United States | France | Australia | United Kingdom | Italy