Ancient Wonder – The 1,600-Year-Old Iron Pillar That Refuses to Rust
The Quwwat-ul-Islam Mosque complex in New Delhi is home to an ancient wonder of metal work – a 1,600-year-old iron pillar that is exceptionally resistant to rust. The Iron Pillar of Qutub Minar, as this ancient monument is sometimes referred to, measures 7.21-meters-tall, has a diameter of 41 centimeters and weighs about 6 tons. It’s […]