Maienfeld is a municipality in the Landquart Region in the Swiss canton of Graubünden. It is a tourist destination in the Alps, both because of the local wine and because it was the setting of the story Heidi.
Wikipedia https://en.wikipedia.org/wiki/Maienfeld
Official Website http://www.maienfeld.ch/
Coordinates 47°0'27.823" N 9°31'51.321" E