Nate Berg is a Los Angeles-based journalist who covers cities, architecture, design and technology. See his work at http://www.nate-berg.com/.

LOST MASTERPIECES

Construction began on Paolo Soleri’s “urban laboratory” of Arocsanti, Arizona, in 1970. Its experimental mixture of architecture and ecology remains only partially realized.

LOST MASTERPIECE

It was supposed to be a dramatic symbol of wealth, but became a squatters’ paradise. Now the Torre de David stands vacant in the center of Caracas, its future unclear.

INFLUENCE

The death of Zaha Hadid has robbed architecture of one of its most famous and controversial figures. Her buildings and influence means Hadid leaves a vibrant legacy.

LOST MASTERPIECES

Rome’s unfinished grand swimming stadium was neither a victim of hubris or bad construction—but rather simple economics. It may even have a chance of Olympics life.

Star Power

The house John Lautner designed for The Big Lebowski is going to be donated to LACMA, meaning students will be able to see the architect’s stunning, mid-century modernist architecture up close.

Getting High

Nearly 30 years—and an estimated $750 million—after its construction began, the empty and unused Ryugyong Hotel in Pyongyang remains a glorified telecommunications antenna.

Wheely Good

Under a new plan, more than a million people are within a half-mile walk of a high-frequency bus stop in Houston. Is this a blueprint for other car-reliant cities like L.A.?