What is unique about Hamburg?
Hamburg, Germany. When you are in Hamburg, visit the Neuengamme concentration camp memorial. Towards the end of World War 2, my grandfather, who was a Danish police officer, was deported with about 2,000 other Danish police officers to concentration camps in Germany - one of them being the Neuengamme concentration camp. To learn more about my grand father's experiences, please read this story.
Doing research about the experiences of my grandfather led me on to the book Man's search for meaning by Viktor Frankl. It is one of the best books I have read.