The architecture of metropolitan Detroit continues to attract the attention of architects and preservationists alike. With one of the world's recognizable skylines, Detroit's waterfront panorama shows a variety of architectural styles. The post-modern neogothic spires of One Detroit Center refer to designs of the city's historic Art Deco skyscrapers. Together with the Renaissance Center, they form the city's distinctive skyline. The suburbs contain some significant contemporary architecture and several historic estates.