The Royal Danish Library on Copenhagen's Slotsholmen waterfront is renowned for its modern extension, 'The Black Diamond' (Den Sorte Diamant). Designed by Schmidt Hammer Lassen and completed in 1999, the monolithic structure is clad in polished black granite tilting gently over the harbour. Inside, a soaring eight-storey glass atrium with wave-like balconies connects to the 1906 library. Access to the public atrium and waterside terrace is free.
| Mon | 09:00 – 18:00 |
|---|---|
| Tue | 09:00 – 18:00 |
| Wed | 09:00 – 18:00 |
| Thu | 09:00 – 18:00 |
| Fri | 09:00 – 18:00 |
| Sat | 09:00 – 18:00 |
| Sun | 10:00 – 16:00 |






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