In brief
The coasts, the castle district and the boulevard participate in a common urban landscape.
Useful to know
The UNESCO site in Budapest includes the banks of the Danube, the Buda Castle neighborhood and Andrássy Boulevard. The heritage spans various periods, including Roman and Gothic traces. [1]
On a map, consider the river as a spatial axis, not an empty space between landmarks. A silhouette from one shore is a different kind of information than a walk on a separate street. Then compare the scale of the castle district and the boulevard. They do not have to have the same device to participate in the recognizable image of the capital.
Sources
For further detail and to check the information: