What is us air arena dc?

I'm sorry, but there is no venue called "US Air Arena DC." The US Airways Arena was a sports and entertainment venue located in Landover, Maryland near Washington, D.C. It opened in 1973 and was home to various sports teams, such as the Washington Bullets (now Wizards), Washington Capitals, and the Georgetown University men's basketball team. The arena was also used for concerts and other events. However, the arena was demolished in 2018 and the site is planned to be redeveloped into a mixed-use development.