Houston,America

Houston is the largest city in Texas, the fourth largest city in the United States, and the largest economic center on the gulf coast. The city was named after the then President of the Texas republic, Sam Houston. Founded in 1836 and merged in 1837, Houston is one of the fastest-growing large cities in the United States. Houston is famous for its oil energy, aviation industry and canals.

NRG stadium, located in Houston, Texas, is the first professional football field in the United States with a roof opening. The NRG stadium's openable roof design is uniquely advanced and can be opened or closed in 10 minutes. More oddly, the open roof of the NRG stadium is made of highly transparent fiberglass, and even when closed it feels like a fully open stadium.