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Workers suspended in the air while cleaning the surface of the Sunny Valley at the 2010 World Expo site. The structures are designed to bring natural light into areas below ground level.
Workers suspended in the air while cleaning the surface of the Sunny Valley at the 2010 World Expo site. The structures are designed to bring natural light into areas below ground level.
26 Mar 2010
  • Asia
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  • Architecture
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  • Construction