Abstract :
The world had never seen anything like it. The Great Pyramid at Giza was the greatest engineering achievement since the dawn of time. Completed around 3600BC, at 147m it was the tallest building ever constructed and remained so until 1300AD when Lincoln Cathedral´s spire soared 160m into the air. No other edifice has held the record for ´World´s tallest building´ for so long.
