As of 2014, WMATA has 91 stations. While there is some variation in the station designs, many design aspects are carried across each of these variations. Nearly every underground station is located in a long vault with a high arched ceiling. Surface and elevated stations tend to incorporate motifs of the underground stations in their design. All platforms have red hexagonal tiles and flashing lights on the platform edge to warn of approaching trains. Many stations have Metro's iconic brown pylons featuring the station name and strip maps. While some may say that WMATA's station design lacks diversity, one can certainly find differences in the station design if one looks hard enough.