Burj Khalifa: How Engineers Pumped Concrete 606 Metres Into the Sky to Build the World's Tallest Tower

In the 50°C Dubai heat, 12,000 workers poured 330,000 m³ of ice-chilled concrete, broke the world record for pumping it 606 metres high, and recycled Cold War–era steel from East Berlin — only to rename the finished tower after an Abu Dhabi sheikh who bailed out the project with $25 billion.

A daily 1-minute video series uncovering how the world's most iconic structures were built — from ancient wonders to modern skyscrapers.