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With the last pour of structural concrete, OPEN's new project Chapel of Sound topped out on November 15th. The pouring of concrete for the roof which is the largest flat surface in the project took about 24 hours. Workers continued on shifts all through the night, carefully finishing the surfaces with hand tools immediately after each batch of concrete was poured in place. They cheered and celebrated when the day broke and morning sun started to glitter on the freshly finished roof plane, concluding this year's construction before winter settles in. 

Chapel of Sound sits in a rocky valley at the foot of Jinshanling Great Wall on the northern boundary of Beijing municipality. It houses a semi-outdoor amphitheater, an outdoor stage, viewing platforms, and supporting spaces. The building is slated to open in the summer of 2020.

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