“…The third group of studies approaches the exhibitions as instruments for government propaganda, products, cultural manifestations and tourist destinations (Della Coletta, 2006;Duranti, 2006;Lockyer, 2013); as forums for cultural diplomacy and political and commercial negotiations (Rydell, Kroes, 2005;Fiss, 2010;Martin, 2015;Shepherdson-Scott, 2015); and as means for the diffusion of images and beliefs relating to colonies, imperialist interests and the construction of national identities (Murray, 1999;Lagae, 2006;Sánchez Gómez, 2006b;Stanard, 2009;Vargaftig, 2010). Great engineering works, such as the Crystal Palace, the Viennese Rotunda, the Eiffel Tower, the Panama Canal and the railroads, as well as machines, works of art and natural products were displayed as symbols of economic power, technological development, "genius" and the riches of each nation (Moore, 2013).…”