First a look into the abyss from the Wiesener Viaduct, at the Landwasser river:

A view of the canyon of the Landwasser further west, from up high:

Back to Chur, which has a Middle Age core, especially around a square called Arcas.

A view along the road to the castle:

To end the walk across Chur, a view of the old town from the shore of the Plessur river:

An interesting geological feature visible from the rail line is the Steinmannli: a group of stone towers formed by the erosion of a moraine (on the right on the photo).

Arosa was built around two small glacial lakes, here is the upper one:

_{*Lunatic*, n.
One whose delusions are out of fashion.}