Recent historiography has demonstrated a growing sensitivity toward space as a geographical and cultural category. The following article expands on this theme by focusing on Alexander von Humboldt and his understanding of nature as >cosmos Humboldtian science Humboldtian science Humboldtian science< not only to satisfy the need for knowledge; beyond that, Humboldt's ideas nourished an esthetic perception of nature, and they served as a vehicle for the ideological search for unity in nature and human society.