Houston is the largest city in Texas and the fourth largest in the United States. It is huge, both in population and in land area. Urban sprawl is a term tailor-made for this city, due to Houston being the largest unzoned city in the country. Houston is a multicultural city home to some of the nation’s largest Asian, Arab and Latin American populations. But its culture is not limited to diverse population ??? it also boasts a world class symphony and theater district that includes a full-time ballet company and opera. Houston is the largest city in the United States without any appreciable zoning. While there is some small measure of zoning in the form of ordinances and land use regulations, real estate development in Houston is only constrained by the will and the pocketbook of real estate developers. Traditionally, Houston politics and law are strongly influenced by real estate developers; at times, the majority of city council seats have been held by developers. What this means to visitors is that Houston covers a larger land area with less population than might otherwise be expected. The city is primarily built on the energy industry and nearly everyone owns a car and drives everywhere they go. However, the city is becoming more dense and walkable, particularly in the Midtown/Montrose areas. With a few exceptions, almost everything to see or do is in Houston's urban core inside the 610 Loop and more specifically in between downtown, the Galleria, and the Texas Medical Center.