University Hall
...that University Hall, Northwestern University's oldest building, is composed of Joliet limestone - the same kind used to build the Chicago Water Tower?
...that <b id="mwAUk"><a class="mw-redirect" href="./University_Hall_(Northwestern)" id="mwAUo" rel="mw:WikiLink" title="University Hall (Northwestern)">University Hall</a></b>, <a href="./Northwestern_University" id="mwAUs" rel="mw:WikiLink" title="Northwestern University">Northwestern University's</a> oldest building, is composed of <a href="./Limestone" id="mwAUw" rel="mw:WikiLink" title="Limestone">Joliet limestone</a> - the same kind used to build the <a href="./Chicago_Water_Tower" id="mwAU0" rel="mw:WikiLink" title="Chicago Water Tower">Chicago Water Tower</a>?