art theory and the former function of the paintings. The aim of this exhibition is to show, for what purpose and for which recipients, works of art were created. The gallery shows a variety of effigies, reflecting the multiplicity of social, political and private functions of portraiture. The exhibition opens with monumental images of courtly and aristocratic portraits and busts compiled with some examples of traditional Polish and Western European portraits en pied and followed with smaller, less formal, or private portraits, coffin portraits and 18th-century portraits followed with miniature portraits and paintings of Stanislaus Augustus' era on the first floor. The core of the new exhibition of the Gallery of 19th-century Art, presenting the main trends shaping the art in the nineteenth century, is the work of Polish painters and sculptors, which is present in the context of selected works by representatives of other nationalities. Confrontation of works by artists from different European countries shows their artistic aspirations, universal ideas or symbols, similar experiments carried out independently or in workshop practice. One of Poland's largest canvas paintings, the Battle of Grunwald by Jan Matejko (426 cm × 987 cm (168 in × 389 in)), is displayed in the Gallery of 19th-century Art. Collections of modern and contemporary art are among the largest in Poland. Paintings, sculptures, prints and drawings from the 1920s and 1930s, Polish avant-garde film, photographs, photomontages, along with selected works of the 1980s independent culture, video and performance of the last forty years are exhibited in a 700 m gallery. Information about the selected objects is available through mobile applications and selected works are visualized and described by the gallery curator thanks to augmented reality. Collection Collections of the National Museum in Warsaw comprise about 830,000 exhibits of Polish and foreign art, from antiquity to the present, and include paintings, sculptures, drawings, engravings, photographs and coins as well as objects of applied art and design. The Collection of Ancient and East Christian Art numbers some 24,000 exhibits, being the largest and most important of its kind in Poland. The collection of frescoes from the Christian cathedral in Faras (ancient Pachoras in today's Sudan) and a collection of painted Greek vases are among the most important. The origins of the Old European Painting Collection, comprising 3,700 paintings, dates back to 1862 and the establishment of the Museum of Fine Arts, when 36 Italian, Dutch and German paintings