The colour black is a popular choice in architecture, but dark façades are not a new trend. Houses were protected from the weather many centuries ago with tar or by flame-scarfing. Today, black is also chosen for visual reasons. The dark colour has a strong graphic effect and emphasises the shapes of buildings. Black houses are eye-catching, but conversely, they also blend into a wooded or rocky landscape. These examples illustrate how black can set powerful emphases in architecture and interior design.