Ключевые слова: anniversary, architecture, background, beautiful, blue, bright, building, celebrate, celebration, center, city, cityscape, colorful, dark, district, downtown, dusk, event, financial, fire, firework, fireworks, flash, flashing, happy, holiday, landmark, landscape, light, lights, metropolitan, new, night, office, party, pennsylvania, philadelphia, philly, scenery, scenic, sky, skyline, states, tourism, travel, united, urban, usa, view, year,