In this age of global commerce and 24/7 workers, we explore why airports may move from the periphery of our cities to the core, with businesses, residences and transportation networks radiating out from them.

After decades of wrangling, the District has big plans for developing this historic 25-acre site.

An archaeologist-turned-architectural-historian is bringing old D.C. buildings back to life using computer models.

The Trust for the National Mall has selected winners in a design competition for three sites on the National Mall.

The recent discovery that as a youth Charles Dickens lived only a few doors from a major London workhouse made headlines worldwide. Diane and her guest talk about the campaign to save it from demolition and Dicken's pre-occuptation with the bleak workhouse at the heart of his novel.

Across the nation and around the globe, many cities are home to both familiar and unknown architectural gems. Which are the amazing streetscapes and buildings you shouldn't miss? We'll find out.