Penn University Architecture, grand historic building, stone walls, Gothic style, pointed arches, ribbed vaults, stunning stained glass windows, intricate carvings, majestic entrance hall, ornate columns, high ceilings, marble floors, soft natural light, afternoon sun, dramatic shadows, atmospheric misty morning, Philadelphia, American Ivy League, prestigious academic institution, vibrant campus life, students walking in the courtyard, autumn foliage, beautiful blooming flowers, subtle warm lighting, cinematic composition.