Ключевые слова: america, anniversary, architecture, background, building, building exterior, built structure, center, city, cityscape, contrasts, district, downtown district, financial district, fountain, freedom, freedom tower, ground, ground zero, landmark, lower, manhattan, memorial, memory, modern, national, new york city, nyc, office building, patriotism, pride, remembrance, sadness, september, september 11, skyline, skyscraper, stand, states, symbol, terrorism, terrorist, trade, united, urban scene, usa, world, world trade center, york, zero,