The European Physical Society has declared the Niels Bohr Institute as a Historical Site with great international importance for developments in physics and research. The Niels Bohr Institute in Copenhagen was established in 1921 for the physicist and Nobel laureate, Niels Bohr, who in 1913 created the groundbreaking atomic model that formed the basis for our understanding of how the world is constructed, and later as the basis for quantum mechanics, which has revolutionised technological development.