When the American architect Louis Kahn collapsed from a heart attack in the toilets of New York's Penn Station in 1974, he left behind a lot of loose ends. There were three children, by three different women [...]. There was his dwindling practice, which he left $500,000 in debt. And, tucked away in his sketchbooks, was a complete set of drawings for an unrealised project – one that would lie dormant in his archive for almost 40 years. — theguardian.com

The park...was conceived four decades ago. The visionary architect who designed it died in 1974. The site...remained a rubble heap while the project was left for dead. But in a city proud of its own impatience, perseverance sometimes pays off. — New York Times