地标型文化区：自由曲面生成的都市群

Design a landmark cultural district inspired by the Guggenheim Museum Bilbao. Integrate museums, galleries, public art, performance venues, plazas, cafés, pedestrian bridges, and waterfront parks into a sculptural urban ensemble generated through free-form digital geometry and expressive materiality. Titanium-clad volumes twisting along a river edge, limestone bases and glazed slots between the forms, a pedestrian bridge passing directly through the ensemble, riverside park and public art below, silver overcast light with faint sheen on the titanium, elevated river-side view, 24mm lens, architectural photography, ultra photorealistic, 8K