French Pritzker Prize–winning architect Jean Nouvel‘s design for Louvre Abu Dhabi has begun construction after a series of delays. The building’s most prominent feature is a 180-meter-diameter dome. The design of the dome is culturally relevant as well as utilitarian. The shape is prominent in traditional Arabian architecture. As the Louvre Abu Dhabi website describes, it is “an emblematic feature…evoking the mosque, the mausoleum, and the madrasa.” The dome’s expanse also protects the building and its visitors from the sun. Carefully formulated geometric apertures in the all-white structure allow diffused and dappled daylight inside the museum, while mitigating heat gain. Nouvel designed the dappled pattern to emulate interlaced palm fronds, which are traditionally used in Arabic countries for thatch roofs.