Rijksmonument
... that the Rijksmonument designation has been applied to about 55,000 sites in the Netherlands?
... that the <b id="mwA98"><a class="mw-redirect" href="./Rijksmonument_(Netherlands)" id="mwA-A" rel="mw:WikiLink" title="Rijksmonument (Netherlands)">Rijksmonument</a></b> designation has been applied to about 55,000 sites in the <a href="./Netherlands" id="mwA-E" rel="mw:WikiLink" title="Netherlands">Netherlands</a>?