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回复 :Dan Snow uncovers the lost Vikings in America with space archaeologist Dr Sarah Parcak. Sarah uses satellites 383 miles above the earth to spot ruins as small as 30cm buried beneath the surface. As Sarah searches for Viking sites from Britain to America, Dan explores how they voyaged thousands of miles when most ships never left the shoreline. He also tracks their expansion west, first as raiders and then as settlers and traders throughout Britain and beyond to Iceland and Greenland. In North America they excavate what could be the most westerly Viking settlement ever discovered.
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回复 :传奇钢索特技家族瓦伦达家族的第七代传人-尼克瓦伦达(Nikolas "Nik" Wallenda)，继2012年6月刷新百年纪录成功横越尼加拉瓜瀑布之后，今年他将再次挑战自我，在无使用任何安全防护的情况下，横越美国大峡谷，他说：「这次我将走在只有5公分宽的纲索上，它是分隔我和大峡谷底的唯一东西！」Discovery频道《钢索人瓦伦达大峡谷特集》将独家全球实况转播这历史性的一刻，见证瓦伦达横越总距离长达400公尺、深达457公尺的大峡谷，这比尼加拉瓜瀑布的......
