Houston is a vibrant and diverse city located on the Texas Gulf Coast. As the largest city in Texas and the fourth-largest in the United States, Houston is a bustling metropolis that offers a unique blend of southern charm, cosmopolitan energy, and a rich cultural heritage. Known as the "Space City," Houston is home to NASA's Johnson Space Center, where astronauts are trained and missions are planned. This prestigious institution has played a significant role in the city's identity and has attracted scientists, engineers, and space enthusiasts from around the world.