<a href="https://en.wikipedia.org/wiki/Ringling_Bros._and_Barnum_&amp;_Bailey_Circus" id="mwAQ8" rel="mw:WikiLink" title="Ringling Bros. and Barnum &amp; Bailey Circus">Ringling Bros. and Barnum &amp; Bailey Circus</a> closes its last "Big Tent" show in <a href="https://en.wikipedia.org/wiki/Pittsburgh" id="mwARA" rel="mw:WikiLink" title="Pittsburgh">Pittsburgh, Pennsylvania</a>; due to changing economics, all subsequent circus shows will be held in arenas.