District of Columbia

Federal officials have reversed their earlier decision and are now pushing for the extension of Washington D.C.-area metro rail to Dulles International Airport -- a plan that's been in the works for nearly 40 years.

Beyond the columns and the Capitol, Washington D.C. contains a wide variety of architectural gems and underappreciated neighborhoods, according to this Q&A about the city from Dwell.

A major financier of Washington D.C.'s Metro system has agreed to give the transit system an extra 10 days to collect more than $40 million from the troubled system, complying with a judge's ruling that forcing Metro to pay could cause great harm.

Metro and 30 other transit agencies across the country may have to pay billions of dollars to large banks as years-old financing deals unravel, potentially hurting service for millions of bus and train riders, transit officials said yesterday.

Washington, D.C. is almost out of space, and planners are now considering building upward to combat sprawl.