Old Stone House
... that the Old Stone House is the oldest standing building in Washington, D.C.?
... that the <b id="mwFXM"><a href="./Old_Stone_House_(Washington,_D.C.)" id="mwFXQ" rel="mw:WikiLink" title="Old Stone House (Washington, D.C.)">Old Stone House</a></b> is the oldest standing building in <a href="./Washington,_D.C." id="mwFXU" rel="mw:WikiLink" title="Washington, D.C.">Washington, D.C.</a>?