sentences:  In 2005, the museum sold land that it owned west of its existing building to Hines, a Texas real estate developer, under an agreement that reserved space on the lower levels of the building Hines planned to construct there for a MoMA expansion.In 2011, MoMA acquired an adjacent building constructed and occupied by the American Folk Art Museum on West 53rd Street.The building was a well-regarded structure designed by Tod Williams Billie Tsien Architects and was sold in connection with a financial restructuring of the Folk Art Museum.