The charm of Utrecht is its sunken canal running through the centre of the Aldstadt. Previously it was the main channel of the Rhine River. Utrecht’s canals are one of a kind in the world with its wharfs and wharf cellars. Back in the Middle Ages (circa 12th century) when the main flow of the river Rhine moved south, parts of the old river bed were dug out to create the Old Canal (De Oudegracht) and wharfs were added to create an inner city harbour system. A direct example of Dutch…