Rather than sit in those uncomfortable chairs near the overcrowded gate while waiting for your flight to depart, take a load off in this luxe hospitality suite. The AMEX Centurion Lounge at the D Gates in McCarran International Airport is the first of American Express’ six lounges in the U.S. Its use is restricted to cardholders and complimentary for those at the Centurion or Platinum level. Membership indeed has its privileges: Amenities include televisions, shower suites, semi-private workspaces, an open full bar, Wi-Fi and catering by Scarpetta’s Scott Conant. So posh is the experience that you’ll almost hope your flight gets canceled. TheCenturionLounge.com.