jungfraujoch sphinx observatory bound by ice, swiss alps winter view

weather station antenna bound ice jungfraujoch peak swiss alps winter view extreme snow snowing eigergletscher jungfrau wengernalpbahn lauterbrunnen grindelwald eiger region switzerland mountain skiing landscape high nature top europe trip landmark tourism architecture travel european schweiz tourist destination alpine idyllic bern berner oberland glacier sphinx observatory deck aletsch frost