In "A Country of Cities," author Vishaan Chakrabarti argues that well-designed cities are the key to solving America's great national challenges: environmental degradation, unsustainable consumption, economic stagnation, rising public health costs and decreased social mobility. If we develop them wi[...]

Spanning the spectacular gorge of the River Tarn in southern France, the Millau Viaduct provides a critical link in the A75 autoroute between Clermont-Ferrand and Beziers. Commissioned by the French state, the 2.46 km-long viaduct resolves numerous structural and design challenges in an elegant cabl[...]