New York, the city that never sleeps... sown with towering, vertiginous skyscrapers that are in danger ... buildings have been erected on artificial ground. Tom Parsons, an American geophysicist ...

The twin towers of the World Trade Center, among the best known buildings in the world, represent only one step in the century-long evolution of skyscrapers in New York City. Here are some ...

Tall, windowed skyscrapers loom over many major metropolitan areas ... For example, the 1915 Equitable Building in New York, has a window-to-wall ratio of 25%. This compares to the Bank of ...