17 of the Oldest Man-Made Structures On Earth Still In Use

Of the original Seven Wonders of the Ancient World, only one wonder still exists today: the crumbling, gorgeous Great Pyramids of Giza. But there are plenty of other ancient structures that deserve our attention too, from a 2,000-year-old church to a more than 1,000-year-old Buddhist temple that's made out of timber.… » 6/07/13 9:13am 6/07/13 9:13am