Spanish Colonial architecture represents Spanish colonial influence on New World and East Indies' cities and towns, and it is still seen in the architecture as well as in the city planning aspects of conserved present-day cities. These two visible aspects of the city are connected and complementary. The 16th-century Laws of the Indies included provisions for the layout of new colonial settlements in the Americas and elsewhere. To achieve the desired effect of inspiring awe among the Indigenous peoples of the Americas as well as creating a legible and militarily manageable landscape, the early colonizers used and placed the new architecture within planned townscapes and mission compounds. The new churches and mission stations, for example, aimed for maximum effect in terms of their imposition and domination of the surrounding buildings or countryside. In order for that to be achievable, they had to be strategically located – at the center of a town square (plaza) or at a higher point in the landscape. These elements are common and can also be found in almost every city and town in Spain. The Spanish Colonial style of architecture dominated in the early Spanish colonies of North and South America, and were also somewhat visible in its other colonies. It is sometimes marked by the contrast between the simple, solid construction demanded by the new environment and the Baroque ornamentation exported from Spain. Mexico, as the center of New Spain—and the richest province of Spain's colonial empire—has some of the most renowned buildings built in this style. With twenty-nine sites, Mexico has more sites on the UNESCO World Heritage list than any other country in the Americas, many of them boasting some of the richest Spanish Colonial architecture. Some of the most famous cities in Mexico built in the Colonial style are Puebla, Zacatecas, Querétaro, Guanajuato, and Morelia. The historic center of Mexico City is a mixture of architectural styles from the 16th century to the present. The Metropolitan Cathedral was built from 1563 to 1813 using a variety of styles including the Renaissance, Baroque, and Neoclassical. The rich interior is mostly Baroque. Other examples are the Palacio Nacional, the restored 18th-century Palacio de Iturbide, the 16th-century Casa de los Azulejos – clad with 18th-century blue-and-white talavera tiles, and many more churches, cathedrals, museums, and palaces of the elite. Between the late 17th century and 1750, one of Mexico's most popular architectural styles was