High Quality Content by WIKIPEDIA articles! Houston is a multicultural city with a thriving international community supported by the third largest concentration of consular offices in the United States, representing 77 countries. Officially, Houston is nicknamed the "Space City" as it is home to NASA`s Lyndon B. Johnson Space Center, where Mission Control Center is located. Because of this, "Houston" was the first word spoken on the moon. Many locals, however, prefer to call it the "Bayou City." Other nicknames include "H-Town", "Clutch City", and "Magnolia City".