Saturday, April 28, 2012
Tuesday, April 24, 2012
Monday, April 23, 2012
Saturday, April 21, 2012
The world's highest and longest tunnel-to-tunnel sspention bridge was opened to traffic in march. Aizhai bridge in human province is 336m (1102 ft)high and has a 1176 m(3858) ft. it connects two traffic tunnels in the mountaion cutting the needed to traverse the canyon beyond it from 30 minutes to 1.
Friday, April 20, 2012
Tuesday, April 17, 2012
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