What is Sion, Switzerland?
{{Infobox Swiss town | subject_name = Sion | image_photo = Sion 2.jpg | municipality_name = Sion | municipality_type = city | imagepath_coa = CHE Sion COA.svg|pixel_coa= | map = Karte Gemeinde Sion.png | languages = French | canton = Valais | iso-code-region = CH-VS | district = [[Sion (district)|Sion]] | coordinates={{coord|46|14|N|7|22|E|display=inline,title}} | postal_code = 1950 | municipality_code = 6266 | area = 25.6 | elevation = 500|elevation_description= | population = 27,697|populationof = December 2002 | popofyear = 2002 | website = www.sion.ch | mayor = François Mudry|mayor_asof=|mayor_party=PDC | mayor_title = |list_of_mayors = | places = | demonym = | neighboring_municipalities= [[Ayent]], [[Conthey]], [[Grimisuat]], [[Grône]], [[Les Agettes]], [[Nax]], [[Nendaz]], [[Saint-Léonard, Switzerland|Saint-Léonard]], [[Salins, Switzerland|Salins]], [[Savièse]], [[Vernamiège]], [[Vex, Switzerland|Vex]] | twintowns = [[Colón, Entre Ríos|Colón]] (Argentina), [[Philippi, West Virginia|Philippi]] (United States) |}} '''Sion''' is the [[capital (city)|capital]] of the [[Swiss]] [[Cantons of Switzerland|canton]] of [[Valais]]. In 2002, it had a [[population]] of 27,700. Landmarks include the [[Basilique de Valère]] and [[Château de Tourbillon]]. == Geography == As of 31 December 2005, 28,013 people lived in Sion.{{fact|date=April 2009}} It is in the center of the Rhône valley. Sion is the [[economy|economic]] and [[commerce|commercial]] hub of the region and canton. The older area of the city still stays and is well [[Historic preservation|preserved]]. As well as the two Château's, a number of other important buildings are there, such as the ''Château de la Majorie'', the ''Hôtel de Ville'' and the ''Cathédrale Notre-Dame de Sion''. == History == Sion started to develop during the time of the Celts. It takes its name from the [[Latin]] word ''Sedunum''. It housed the [[ancient Rome|Romans]] with the rest of the surrounding area in the [[1st century BC|first centur