500 Fifth Avenue
... that just prior to the construction of 500 Fifth Avenue, the site on which it was built was reportedly the second most valuable undeveloped lot in Manhattan?
... that just prior to the construction of <b id="mwAdc"><a href="./500_Fifth_Avenue" id="mwAdg" rel="mw:WikiLink" title="500 Fifth Avenue">500 Fifth Avenue</a></b>, the site on which it was built was reportedly the second most valuable undeveloped lot in <a href="./Manhattan" id="mwAdk" rel="mw:WikiLink" title="Manhattan">Manhattan</a>?