Ключевые слова: america, architecture, areas, bridge, building, business, center, city, clouds, construction, cosmopolitan, destination, distant, downtown, forest, hill, landmarks, landscape, living, mansion, metropolis, modern, mountain, northwest, oregon, pacific, panorama, pittock, place, portland, river, scape, scenic, sky, states, street, surrounding, tourism, travel, tree, united, urban, usa, view, viewpoint,