The McLellan House and L. D. M. Sweat Memorial Galleries have an emphasis on 19th-century American art, and the Payson Building houses European and American works from the 20th and 21st centuries. The project to "complete the Museum" returned the McLellan House to its original neoclassical elegance and the L. D. M. Sweat Memorial Galleries to their Beaux-Arts splendor, in the process creating distinctive spaces for the Museum's outstanding collection of 19th-century American art. The Museum's expanded space allows a more complete presentation of the permanent collection, which in recent years has grown in quality and historical importance.