HOUSTON, Jan 31 (Reuters) - When Houston last hosted the Super Bowl in 2004, the oil city's sleepy downtown lacked the sizzle befitting the big game - and that prompted civic leaders to act.
This time, fans arriving for Sunday's American professional football championship will discover a revamped downtown district with twice as many residents, a renovated convention area and a plethora of food and entertainment offerings.
The Texas megacity near the Gulf Coast, with a population of more than 6 million that makes it the United States' fifth-biggest metropolitan area, is best known as a hub of the U.