The archive's most used resource, this collection comprises ca. 1200 photos of Niels Bohr and his environment, the Niels Bohr Institute, visiting scientists, etc. Prints and negatives are organized under the following headings: Niels Bohr, portraits, 1910-1939, 1940-1962; Adlers (Bohr's maternal family); No/rlunds (Margrethe Bohr's family); Niels & Margrethe Bohr; Bohr Family; children; Bohr together with 1 or 2 scientists; Bohr together with popular figures; Bohr in small groups; Bohr in large groups; Conferences; Apparatus; Buildings; Miscellaneous; Other people (mostly scientists).