“According to the plan, the museum’s exhibition space will be quadrupled to about 428,000 square feet. Compare that to the space in New York’s expanded Museum of Modern Art (125,000 square feet) or in London’s Tate Britain and Tate Modern (a total of 222,812 square feet between them). The full price tag of the project has not been announced yet, but some sources estimate it at about $380 million.”