bridge, tunnel, door
subway, traffic, architecture
church, cathedral, religion
cathedral, church, religion
scotland, edinburgh, facades
saint peter's basilica, basilica, pope
cityscape, architecture, building
skyscraper, architecture, city
ruhr area, industry, architecture
mosque, building, islam
pipe, building, structure
santorini, greece, buildings
caravansary, monument, persian architecture
books, library, bookstore
church, lake, building
ireland, library, books
toronto, skyline, sunset
pattern, texture, architecture
city, bridge, cityscape
ruhr area, industry, architecture
