Amsterdam has many small canals around and through the city and they are open to boats. Origami was put to good use as we spent a day exploring.
Yes,these buildings lean as well. Most of the period properties here do. No-one seems alarmed, it's normal.
They all have hoists from the top storey for the removal of furniture. The more ornate the plasterwork, the wealthier the owner was. And some are very ornate.