英文關鍵字
allentown
america
american
architectural
architecture
business
center
central
city
geographical
geography
north
northeast
pennsylvania
road
skyline
sprawl
states
street
travel
upper
urban
usa
英文關鍵字
allentown
america
american
architectural
architecture
business
center
central
city
geographical
geography
north
northeast
pennsylvania
road
skyline
sprawl
states
street
travel
upper
urban
usa