Arm-Sized Bolts Keep Falling Off London's Cheesegrater Tower 

The Cheesegrater is a beautiful glass wedge of a building that rises over 700 feet into the London skyline. It unfortunately has some safety problems. This week, its owners revealed that a third bolt of high-strength steel snapped because of "hydrogen embrittlement"—an obscure term, but one that "causes fear among… » 1/16/15 1:45pm 1/16/15 1:45pm

Building Demolished from the Ground Up Looks Better than New

A 15-story office block in the heart of London is being demolished backwards in order to build a skyscraper in its place. Demolishers are working up from the ground level upwards, dismantling each floor to reveal the concrete core of the P&O building. Find out why, and the new skyscraper replacing it, after the jump. » 8/03/07 8:29am 8/03/07 8:29am