Tulsa, the second largest city in Oklahoma, is situated on the Arkansas River in the northeastern part of the state. The city supports a widely diversified business base, including aerospace, telecommunications, manufacturing, construction, high technology, healthcare, education, transportation, and energy. It offers opera, ballet, art museums, a performing arts center, and many other cultural attractions. Tulsa has been named one of America's most livable cities by Partners for Livable Communities and Forbes.