by a purpose built book tunnel. This housed an electric "book conveying apparatus" that could transport volumes between the two buildings at 600 feet per minute. A portion of the book tunnel was destroyed to make room for the underground Capitol Visitor Center, which opened in 2008. Capitol Page School Senate, House and Supreme Court pages formerly attended school together in the Capitol Page School located on the attic level above the Great Hall. Upon the separation of the programs (and the closure of the Supreme Court Page Program), the schools split. Senate Pages now attend school in the basement of their dormitory. The House Page Program was closed in August 2011. A small suite in the northwest corner of the attic level remains home to the official office of the Poet Laureate of the United States. Coolidge Auditorium The Elizabeth Sprague Coolidge Auditorium, which opened in October 1925, has been home to more than 2,000 concerts, primarily of classical chamber music, but occasionally also of jazz, folk music, and special presentations. Some performances make use of the Library's extensive collection of musical instruments and manuscripts. Most of the performances are free and open to the public. Elizabeth Sprague Coolidge was a wealthy patron of the arts and was no relation to Calvin Coolidge, who, coincidentally, was President of the United States at the time the Coolidge auditorium was established. Art According to the Records of the Columbia Historical Society, Bernard Green, who played an important role on the interior design of the building, viewed the interior art as necessary “to fully and consistency carry out the monumental design and purpose of the building”. Art and sculptures can be found in and throughout the Jefferson Building. Representatives of the National Sculpture Society met with Casey and Green during the building's construction to select the sculptors for the Library's statues and figures. In 1894, 20 American sculptors were extended commissions and 19 accepted. In total, more than fifty American painters and sculptors produced commissioned works of art. The Main Reading Room, circular in shape, is surrounded by eight giant marble columns that are each decoratively topped with a large statue of a female figure. The 8 statues each represent different aspects of knowledge and are symbols of civilization, including: Religion, Commerce, History, Art, Philosophy, Poetry, Law, and Science. Pendentives rest above each symbolic statue, with a quote from a notable author/work