A covered bridge is a timber-truss bridge with a roof, decking, and siding, which in most covered bridges create an almost complete enclosure. The purpose of the covering is to protect the wooden structural members from the weather.
Here are a couple of covered bridges in North Carolina.
Frank Gehry centered the Panama City’s Biodiversity Museum on a public open-air atrium covered by a sequence of multicolored metal canopies, each folded and staggered to evoke Panama’s local vernacular of tin roofs and colorful facades. The origami-like roofs also help protect the interior from the region’s wet-season downpour and wind gusts. A museum store, cafe, and a temporary exhibition space branch out from the central atrium.