Praça da Bandeira (Q10353408)

• matcher place: Belém (relation 185567)
• view on Wikidata
• Wikipedia: Portuguese
• Wikimedia Commons
• Overpass query: show query – Overpass Turbo

  [timeout:300][out:json];
  (
      node(around:1000,-1.45458,-48.49951)[heritage][~"^(addr:housenumber|.*name.*)$"~".",i];
      way(around:1000,-1.45458,-48.49951)[heritage][~"^(addr:housenumber|.*name.*)$"~".",i];
      rel(around:1000,-1.45458,-48.49951)[heritage][~"^(addr:housenumber|.*name.*)$"~".",i];
      node(around:1000,-1.45458,-48.49951)[historic][~"^(addr:housenumber|.*name.*)$"~".",i];
      way(around:1000,-1.45458,-48.49951)[historic][~"^(addr:housenumber|.*name.*)$"~".",i];
      rel(around:1000,-1.45458,-48.49951)[historic][~"^(addr:housenumber|.*name.*)$"~".",i];
      node(around:1000,-1.45458,-48.49951)[historic=heritage][~"^(addr:housenumber|.*name.*)$"~".",i];
      way(around:1000,-1.45458,-48.49951)[historic=heritage][~"^(addr:housenumber|.*name.*)$"~".",i];
      rel(around:1000,-1.45458,-48.49951)[historic=heritage][~"^(addr:housenumber|.*name.*)$"~".",i];
      node(around:1000,-1.45458,-48.49951)[place=square][name];
      way(around:1000,-1.45458,-48.49951)[place=square][name];
      rel(around:1000,-1.45458,-48.49951)[place=square][name];
      node(around:1000,-1.45458,-48.49951)["protect_class"="22"][~"^(addr:housenumber|.*name.*)$"~".",i];
      way(around:1000,-1.45458,-48.49951)["protect_class"="22"][~"^(addr:housenumber|.*name.*)$"~".",i];
      rel(around:1000,-1.45458,-48.49951)["protect_class"="22"][~"^(addr:housenumber|.*name.*)$"~".",i];
  );
  out center tags;

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found a single match candidate

Search criteria from Wikidata

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square (Q174782)	place=square
cultural heritage (Q210272)	protect_class=22, historic=heritage
monument (Q4989906)	historic=monument
memorial (Q5003624)	historic=memorial
work of art (Q838948)	tourism=artwork