Bernina Massively Bernina Pass Bernina Railway Trasse Curve

railway switzerland tourism mountains panorama curve trasse alpine view barrier world heritage parking graubünden narrow gauge pass road bella vista piz bernina engadin svizzera level crossing rhätikon meter track bernina railway rhb rhaetian railways ferrovia retica bernina bernina pass bernina massively montebello-curve piz morteratsch park strip morteratsch glacier