Queens Building
... that the Queens Building at Heathrow Airport was one of the most visited London attractions in 1956?
... that the <b id="mwAQc"><a href="./Queens_Building,_Heathrow" id="mwAQg" rel="mw:WikiLink" title="Queens Building, Heathrow">Queens Building</a></b> <i id="mwAQk">(pictured)</i> at <a href="./Heathrow_Airport" id="mwAQo" rel="mw:WikiLink" title="Heathrow Airport">Heathrow Airport</a> was one of the most visited London attractions in 1956?