Castle as in "a type of fortified structure built in Europe and the Middle East during the Middle Ages by nobility".
Unfortunately obvious historic=castle fails - as it is defined and used as "(often fortified) buildings from medieval and modern times" and includes nearly everything - for example "Representative building without functional defenses.". (see http://wiki.openstreetmap.org/wiki/Tag:historic%3Dcastle ). _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
