After the successful first Sunday in January, the Museum für Naturkunde Berlin has now offered two more weekend days without admission - with overwhelming success: 25,000 Berliners said goodbye to Tristan Otto. The Tyrannosaurus now travels to Copenhagen, where it will be exhibited for one year. 5,000 young adults danced on Friday evening to Organic Deep House under the dinosaur. 10,000 guests each celebrated a big family party on Saturday and Sunday. But no worry big and small predator fans: Tristan Otto will be back!