 This is a Bloomberg Pursuits look at luxury. More than three years in the making, American Express Company's brand new Centurion Lounge at Ronald Reagan Washington National Airport has opened to the public. Located in Terminal 2, just past the South Security Checkpoint, the almost 12,000 square foot lounge space is the first Amex Centurion Lounge to open in the DC metro area and the first credit card lounge at the airport.