I had heard about the Red Thread via a travel vlog and was keen to give it a go when in Hannover, as we only had a short time in the city and wanted to see and learn as much as we could. The Red Thread is perfect for this. Buy the book at the Tourist Info office for just €3 and pick up the trail that begins at the office door. There are 36 points on the trail including shopping streets, buildings, monuments and other places of interest. As its is self guided you can tailor the walk to suit your own time constraints, interests and so on. The booklet also offers up helpful info about where you will find toilets, suggested refreshment stops, any accessibility issues etc. The red line is literally painted onto the ground and so is very easy to follow. A really good idea that helps the visitor get the best out of their time in the city.