Located in Texas, the fourth largest city in the U.S. is known for NASA, its annual rodeo and the largest medical complex in the world, the Texas Medical Center. However, Houston has matured into a complete and downright hip vacation destination for the savvy traveler. The city is a diverse metropolis where no ethnicity comprises a majority of the population. This mix of cultures has contributed to making Houston a city of superb cuisine and world-class culture, entertainment and shopping. It's no surprise that Houston now attracts visitors from all over the world.