英文關鍵字
river
tree
scenic
beautiful
adventure
clouds
blue
dramatic
nature
virginia
waterfall
usa
tranquil
scene
serene
archival
1960
historic
old
attraction
american
architecture
dawn
dc
downtown
famous
monument
landmark
potomac
place
travel
washington
water
united
tower
town
scenery
outdoors
natural
rock
rocky
fall
exposure