Historically the city has also been known as Charcas, La Plata and Chuquisaca, resulting in the nickname of "the City of Four Names" or "la Ciudad de Cuatro Nombres  " As most of the colonial buildings in the city center are whitewashed, the city also enjoys the nickname of "the white city" or "la ciudad blanca. Very much a Spanish city during the colonial era, the narrow streets of the city center are organized in a grid, reflecting the Andalusian culture that is embodied in the architecture of the city's great houses and numerous convents and churches. Sucre remains the seat of the Catholic church in Bolivia, and a common sight is members of religious orders dressed in traditional garb.