<a class="mw-redirect" href="https://en.wikipedia.org/wiki/One_World_Observatory" id="mwAZk" rel="mw:WikiLink" title="One World Observatory">One World Observatory</a> at <a href="https://en.wikipedia.org/wiki/One_World_Trade_Center" id="mwAZo" rel="mw:WikiLink" title="One World Trade Center">One World Trade Center</a> opens.