The Royal Institute for Cultural Heritage works with an online database, called BALaT (Belgian Art Links and Tools), which replaces the search form of the online photo library and allows people to search for different data bases simultaneously. It covers all aspects of Belgium's art heritage (visual arts, artistic crafts, architecture, archaeology and landscapes). Some of these photographs date from the end of the 19th century. This collection is constantly expanding thanks to new photographic campaigns and to the photographs of the works of art treated at the institute. All the photos of the photo library that are already in the online data base are henceforth downloadable free of charge in the current format of archiving, except the photos taken in the last ten years, which are only available upon order.