BBC News - Fast Track - Feeling the force of Iguazu Falls in ArgentinaPage last updated at 12:23 GMT, Friday, 29 July 2011 13:23 UK The seven wonders of the world are some of the most visited sites on the planet, and with good cause. Back in 2007 there was a campaign to update this exclusive list to promote more sites of historical and cultural importance by selecting seven new wonders of the world. This year the public are being asked to vote again, this time on se
