A glass ceiling

The Great Court glass ceiling at the British Museum is a spectacular sight. It’s made of 3,312 panels of glass held together by four miles of steel. Because of the complex geometry of the structure, each panel is a different size and shape. 

Housekeeping fact: the roof needs to be cleaned every three months and it takes two weeks to complete the job, so I’ll stop complaining about cleaning the windows here at home.

For anyone visiting London, the British Museum is a must and it’s free of charge. Quite amazing.