Sion, Switzerland Sion, Switzerland Sion (; ; ; ) is a Swiss town, a municipality, and the capital of the canton of Valais and of the district of Sion. it had a population of (known as "Sédunois(e)"). On 17 January 1968, the former municipality of Bramois merged into the municipality of Sion. On 1 January 2013, the former municipality of Salins merged into the municipality of Sion, and on 1 January 2017, Les Agettes did the same. Landmarks in Sion include the Basilique de Valère and Château de Tourbillon. Sion has an airfield for civilian and military use, where it serves as
Trans-European Airport network the poor quality of the inland transport infrastructure. Airports in all three categories are shown on this map (13 MB), p. 103 In addition to the above characteristics, International and Community connecting points should also be gradually linked to the Trans-European high-speed rail network, where appropriate. The network should include the infrastructures and the facilities which permit the integration of air and rail transport services and, where appropriate, maritime transport services. Trans-European Airport network The Trans-European Airport network is one of a number of the Trans-European Transport Networks (TEN-T) of the European Union. According to Article 13 of the Decision