Helsinki architecture, Nordic style, modern building, Senate Square, Uspenski Cathedral, Helsinki Cathedral, white granite, neoclassical columns, green dome, intricate details, symmetrical facade, grand staircase, ornate decorations, natural light, warm interior, wooden accents, minimalistic, Scandinavian design, functionalism, brutalist elements, urban landscape, city square, pedestrians, bicycles, tram tracks, cloudy sky, soft morning light, cinematic composition.