Fort Worth has emerged from Dallas' shadow to become one of the most dynamic cities in Texas, with a population exceeding 950,000 and growth that shows no signs of slowing. The city's Cultural District — home to the Kimbell Art Museum, the Modern Art Museum of Fort Worth, and the Amon Carter Museum of American Art — is one of the finest museum districts in the country. The Fort Worth Stockyards, a National Historic District, preserves the city's cattle-trading heritage with twice-daily cattle drives, honky-tonks, and Western-themed restaurants. The economy is anchored by defense (Lockheed Martin's F-35 facility at the Naval Air Station Joint Reserve Base is a massive employer), American Airlines (headquartered in neighboring Fort Worth), healthcare (JPS Health Network, Cook Children's Medical Center), and a growing tech and startup scene. Neighborhoods range from the walkable Near Southside and Fairmount historic district to the suburban sprawl of far north Fort Worth, the lakefront communities around Eagle Mountain Lake, and the master-planned developments in Alliance/Heritage. Fort Worth ISD is the largest district, though many families opt for Keller, Northwest, or Eagle Mountain-Saginaw ISDs. The cost of living remains competitive with Dallas and below Austin, which has attracted corporate relocations and individual movers alike. Interstate 35W, I-30, and the Loop 820 form the commute grid.