Aix-en-Provence a UFO in 1981 that is taken seriously by GEIPAN, the department within the French Space Agency responsible for investigating aerospace phenomena. Aix-en-Provence is officially twinned with the following seven cities (in alphabetical order): In addition, Aix has international cooperations, partnerships and exchanges with the following cities from all over the world: Aix-en-Provence was the birthplace of: Aix-en-Provence Aix-en-Provence (; , ; ), or simply Aix (; medieval Occitan "Aics"), is a city-commune in the south of France, about north of Marseille. A former capital of Provence, it is in the region of Provence-Alpes-Côte d'Azur, in the department of Bouches-du-Rhône,
Provence-Alpes-Côte d'Azur Festival which has highly popularized the region. Also, Arles has become renowned as the city in which Vincent van Gogh lived and painted 300 paintings. Toulon is a large military harbour on the Mediterranean coast, with the French naval base placed there. It is the capital of the Var department in the region. Also, Aix-en-Provence has long been a university town, and to this day remains the most important educational centre in the region. Below is a list of the most populated cities in the region along with their population (city proper) according to the most recent census. This region