英文關鍵字
landwasser
viaduct
swiss
train
switzerland
express
railway
panoramic
tunnel
canyon
gorge
railroad
red
dramatic
graubunden
landwasserviadukt
scenic
glacier
valley
transport
rail
curved
pass
alp
arch
panorama
bernina
unesco
transportation
pillar
journey
towering
above
idyllic
perspective
historical
rock
vacation
tranquility