Nate Berg

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

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.

A hundred years after construction began, the shell of a subway tunnel still lies beneath the Ohio city’s streets, empty and unfinished.

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.

Even though it ended up being significantly shorter than originally planned, the Metropolitan Life North Building has become a New York City architectural landmark.

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.

The plan for Las Vegas’ 49-story Harmon tower sounded, and looked, grand. But it was literally cut down in its prime.

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

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.

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.?