kartta.hel.fi
The City of Helsinki map service is a map portal that can be used to access the map and geographic information datasets of several departments. The portal can be used to locate buildings and other real estate, city plan maps and register information about locations. The portal gives access to many…
Wikimedia Commons
Wikimedia Commons is a repository of free images, videos, sounds and other multimedia files. Structured data on Wikimedia Commons is multilingual information about a media file that can be understood by humans, with enough consistency that it can also be uniformly processed by machines. Files on…
Wikidata
Wikidata is a free and open knowledge base that can be read and edited by both humans and machines. Wikidata acts as central storage for the structured data of its Wikimedia sister projects including Wikipedia, Wikivoyage, Wiktionary, Wikisource, and others. Wikidata also provides support to many…
Creative Commons Search
CC Search is a tool that allows openly licensed and public domain works to be discovered and used by everyone. CC Search searches across more than 300 million images from open APIs and the Common Crawl dataset. It goes beyond simple search to aggregate results across multiple public repositories…