英文關鍵字
above
aerial
alp
alps
architecture
background
beautiful
building
capital
castle
city
country
drone
europe
european
flight
flying
footage
forbidden
fortress
gadget
government
high
landmark
landscape
liechtenstein
medieval
mountain
nature
old
palace
panorama
patriotism
principality
prohibited
scenic
stone
switzerland
technology
top
tourism
town
travel
vacation
vaduz
valley
view
violation