Ключевые слова: america, amtrak, architecture, building, buildings, city, cityscape, clock, columbia, december, depot, destination, downtown, landmark, north, northwest, old town, oregon, portland, portland union station, red, roof, skyline, station, structure, terminal, time, tour, tourism, tower, train, tram, translation, transportation, travel, union station, united states, us, usa, view, west, willamette, winter,