Gupta metal workers were also famous for their metal work. they made an iron pillar in a place called Meharauli. This pillar is made of solid iron and it is 25 feet tall and weighs about 14,000 pounds. There is a story engraved on the side of this pillar that describes the accomplishments of a Gupta emperor. After 1,600 years in the rain and sun the iron is almost completely rust free and it is still a mystery to how the iron workers had such advanced metal working skills.