Mountain retreat and old stone caves called Crotto, San Romerio Alp, Brusio, Poschiavo Valley, Canton of Graubunden, Switzerland, Europe

photography colour colour image color color image horizontal horizontal image outdoors outside day background people incidental people people in the background travel destination travel destinations travel mountain retreat stone caves crotto san romerio alp brusio poschiavo valley canton of graubunden switzerland europe european landscape landscapes scenics scenic scene scenes scenery building exterior building buildings architecture architectural elevated view mountain alpine