No value has been documented so far for rooms dedicated for worshipping without being limited to a specific religion. It is useful however so a renderer could apply a specific icon, and a mapper sees that it is not just forgotten.
https://wiki.openstreetmap.org/wiki/Key:religion Such rooms are found e.g. in public environments with a multi-cultural audience, such as airports or universities, often called "prayer room" or "quiet room". My favourite would be "multi" as is is concise and also used in sport=multi, while "multifaith" is a bit longer but slightly more self-explanatory. "multi_cultural" has not bee used so far, and probably not better than "multifaith". Current usage: religion= (354165 tags in total) 182 multifaith 49 * 18+4+4+2 christian␣and␣muslim or christian;muslim or muslim;christian or christian,muslim 18 other 15 public 15+1+1 non-denominational or Non-Denomination or Non-Demoninational 4 [empty string] 3 popular 3 multi 3 yes 2 All-Religion 1 bahai;buddhist;christian;hindu;jewish;muslim 1 All 1 multiconfessional_ 1+1 Muslim_and_Christian or christian,_muslim 1 every_religion 1 religion BTW, is correcting capitalised values to lowercase allowed or is that already considered a Mechanical Edit? tom _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
