三个几何体的组合：图书馆、博物馆与天文馆

Design a cultural complex in the manner of Christian de Portzamparc's Les Champs Libres — three institutions given three unmistakably different primary forms stacked and set side by side: an inverted pyramid for the library, a long horizontal bar for the museum, and a dark cone for the planetarium. Compose an upside-down glazed pyramid rising above a low rectangular block, a squat dark cone alongside, all three sharing one paved plaza, contrasting materials and colours between the volumes, city buildings around, bright daylight, low three-quarter view, 24mm lens, architectural photography, ultra photorealistic, 8K