The building was removed. Should we remove house number 1 too? FTR, the house number exists on wien.gv.at/stadtplan: https://www.wien.gv.at/stadtplan/grafik.aspx?lang=de-AT&bookmark=4MKARicE2EXHotdDkQc-cQ0FSphlnqnnkur2pH4Oprw-b-b&bmadr=10078015