Lurie Garden
... that Lurie Garden is the focal nature component of what is perhaps the world's largest green roof?
... that <b id="mwEsA"><a href="./Lurie_Garden" id="mwEsE" rel="mw:WikiLink" title="Lurie Garden">Lurie Garden</a></b> is the focal nature component of what is perhaps the world's largest <a href="./Green_roof" id="mwEsI" rel="mw:WikiLink" title="Green roof">green roof</a>?