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wil540_ t1_j3mhh23 wrote

The Rhode Island State House is constructed of 327,000 cubic feet (9,300 m3) of white Georgia marble, 15 million bricks, and 1,309 short tons (1,169 long tons) of iron floor beams. The dome is "the fourth largest self-supported marble dome in the world".

https://en.wikipedia.org/wiki/Rhode_Island_State_House

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