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A view from the National Mall west of the Smithsonian. The plan, which may take up to two decades to finish, would still need approval from the National Capital Planning Commission and the Commission of Fine Arts. Photo 4 of 8 in BIG Presents New Vision for Smithsonian Campus in Washington

BIG Presents New Vision for Smithsonian Campus in Washington

4 of 8

A view from the National Mall west of the Smithsonian. The plan, which may take up to two decades to finish, would still need approval from the National Capital Planning Commission and the Commission of Fine Arts.