One City Center
... that One City Center was the largest urban shopping mall in the United States when it opened in 1986?
...  that <b id="mwB_4"><a href="./One_City_Center_(St._Louis)" id="mwB_8" rel="mw:WikiLink" title="One City Center (St. Louis)">One City Center</a></b> was the largest urban <a href="./Shopping_mall" id="mwCAA" rel="mw:WikiLink" title="Shopping mall">shopping mall</a>  in the <a href="./United_States" id="mwCAE" rel="mw:WikiLink" title="United States">United States</a>  when it opened in 1986?