英文關鍵字
admiring
alone
along
ancient
approaching
architecture
barcelona
building
castle
center
city
culture
day
daytime
downtown
europe
excursion
excursions
exploring
fort
fortress
guy
heritage
historic
history
inspecting
looking
male
man
mediaeval
medieval
old
person
place
ruined
ruins
sightseeing
stone
strolling
summer
tourism
tourist
travel
traveler
viewing
walking
wall
walls
young