Valencia’s L’Umbracle has 55 fixed arches.
L’Umbracle is a long landscaped promenade and sculpture garden at the City of Arts and Sciences in Valencia, Spain. Designed by Santiago Calatrava, it also acts as a roof over a large car park, combining practical infrastructure with a public garden.
The structure is about 320 meters long and 60 meters wide. Its parabolic arches create a ribbed canopy, and the garden contains plants suited to Valencia’s Mediterranean climate, including palms, rosemary, honeysuckle, bougainvillea, and bitter orange trees.
The main source of confusion is that L’Umbracle has two different arch counts: 55 fixed arches and 54 floating arches. The floating arches rise to about 18 meters and create the lighter, more dramatic upper silhouette, but the question asks specifically for the fixed arches.