Royal Danish Library

The Royal Library stands on Slotsholmen, an island in central Copenhagen’s harbour. Its main site, known as the Black Diamond, is a striking modern building clad in black marble and glass. Inside, two black cubes tilt slightly over the street, framing an eight-storey glass atrium with wave-shaped white walls. Three bridges link the new building to the old 1906 library hall, which still holds a central hall modelled on Charlemagne’s chapel in Aachen. The Black Diamond also contains a concert hall, and from its balconies visitors look across the water to Christianshavn’s elegant buildings. The library is Denmark’s national repository, holding every work printed in the country since the 17th century and nearly all Danish books back to 1482. Among its treasures are manuscripts by Hans Christian Andersen and Søren Kierkegaard, a 1,200-page chronicle by Guamán Poma de Ayala, and a rare 1255 illuminated Bible. These holdings are recognised on UNESCO’s Memory of the World register. The library also preserves a copy of the Gutenberg Bible and extensive collections of Icelandic manuscripts. Inside, the old hall’s marble columns rise to a vaulted ceiling copied from Aachen Cathedral. The atrium’s glass walls let in light and sea views, while the bridges overhead carry books between the buildings. Rare books are kept in secure rooms, but digitised copies of pre-1900 Danish works are freely available online. Scholars and visitors alike move through spaces where centuries of Danish culture are stored and studied.