The hostel that I stayed at was a christian hostel called Shelter City right in the red light district. Originally, I imagined that the red light district was this isolated part of the town away from the general public but its actually centered right in the middle of it.
The second day I met up with another Couchsurfing member named Alex at nieumarkt and we rented some bikes and biked all over the city. We visited the famous Vondelpark and then finished our ride at the Anne Frank house. It was pretty interesting to see how the family survived for so long as well as how they hid themselves.