OpenStreetMap

https://overpass-turbo.eu/ - Overpass turbo est un outil internet d'exploration de données pour OpenStreetMap.

https://osm-queries.ldodds.com/tutorial/index.html - Un tutoriel pour se familiariser avec les concepts et l'utilisation d'overpass. 
"This website provides collections of OverpassQL queries to help you to learn the language and explore the features."

https://dev.overpass-api.de/overpass-doc/en/index.html - Overpass API User's Manual

"OpenStreetMap represents physical features on the ground (e.g., roads or buildings) using tags attached to its basic data structures (its nodes, ways, and relations). Each tag describes a geographic attribute of the feature being shown by that specific node, way or relation."

https://wiki.openstreetmap.org/wiki/Map_features - Liste des éléments disponibles