At 146.5 m (481 ft) high, the Great Pyramid stood as the tallest structure in the world for more than 4,000 years. Today it stands at 137 m (449.5 ft) high, having lost 9.5 m (31 ft) from the top.

Math problems aren’t always easy to figure out. They require practice and experience to master, especially if you don’t have much time to spend learning. These seemingly simple numbers and equations ...

Cecil Balmond examines the shapes that define three of the world's iconic structures, Stonehenge, the Taj Mahal and the Great Pyramid. Show more Leading structural engineer and designer Cecil Balmond ...