Mémoire, a series of photomontages constructed in 2006 by the Congolese artist Sammy Baloji, comprises a set of black-and-white archival photographs embedded onto colored prints of the contemporary landscape of Lubumbashi, a city located in the Katanga province of the Democratic Republic of Congo. In the thirty composite images, Congolese men and women and European officials extracted from photographs produced mainly during the 1920s–30s in the Belgian Congo appear to enter today's dilapidated industrial mining sites in and around the city.