[timeout:300][out:json];
(
node(around:1000,49.97657,9.17775)[building=ruins][~"^(addr:housenumber|.*name.*)$"~".",i];
way(around:1000,49.97657,9.17775)[building=ruins][~"^(addr:housenumber|.*name.*)$"~".",i];
rel(around:1000,49.97657,9.17775)[building=ruins][~"^(addr:housenumber|.*name.*)$"~".",i];
node(around:1000,49.97657,9.17775)[historic=castle][~"^(addr:housenumber|.*name.*)$"~".",i];
way(around:1000,49.97657,9.17775)[historic=castle][~"^(addr:housenumber|.*name.*)$"~".",i];
rel(around:1000,49.97657,9.17775)[historic=castle][~"^(addr:housenumber|.*name.*)$"~".",i];
node(around:1000,49.97657,9.17775)[historic=ruins][~"^(addr:housenumber|.*name.*)$"~".",i];
way(around:1000,49.97657,9.17775)[historic=ruins][~"^(addr:housenumber|.*name.*)$"~".",i];
rel(around:1000,49.97657,9.17775)[historic=ruins][~"^(addr:housenumber|.*name.*)$"~".",i];
node(around:1000,49.97657,9.17775)[ruins=castle][~"^(addr:housenumber|.*name.*)$"~".",i];
way(around:1000,49.97657,9.17775)[ruins=castle][~"^(addr:housenumber|.*name.*)$"~".",i];
rel(around:1000,49.97657,9.17775)[ruins=castle][~"^(addr:housenumber|.*name.*)$"~".",i];
);
out center tags;
found a single match candidate
| ruins (Q109607) | building=ruins, historic=ruins |
| castle ruin (Q17715832) | ruins=castle |
| castle (Q23413) | historic=castle |
| administrative territorial entity (Q56061) | boundary=administrative |