The Daily Mail:

Construction continues at Apple’s new California campus in Cupertino with one of the most difficult aspect of the project underway – the installing of the world’s largest piece of curved glass.

More than 3,000 curved panes will be used in the end around both sides of the circular four-story building, which is over a mile around.

Peter Arbour, an architect who works with Apple on their store designs, previously said that in the end more than six kilometers of curved glass will be used in the project.

I find it remarkable Apple is going to this incredible effort. They don’t really have to. They want to. The company is not going to be better because their new headquarters has the “world’s largest piece of curved glass”. But I do know from speaking to Apple employees who will be in the new campus that they are very excited about the building and that it gives them a sense the company really cares about their work environment. They also know they are going to be spending a lot of time behind that glass.