Nobody really thinks of Houston as a traveler's destination, but it's a city that's actually very cool if you take the time to get to know it (even Forbes agrees, putting it at the top of its list of America's Coolest Cities in 2012). As the United States' fourth-largest city, Houston is vibrant, dynamic, and full of opportunity and diversity, where more than 90 languages other than English are spoken. With bumpy roads and friendly faces, visitors will find an intriguing blend of Texas and transplant culture.