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The Delhi iron pillar has been attracting tourists for centuries
The famous iron pillar in Delhi belonging to the fourth-fifth century A.D. is a metallurgical wonder. This huge wrought iron pillar, 24 feet in height 16.4 inches in diameter at the bottom, and 6 1/2 tons in weight has stood exposed to tropical sun and rain for at least fifteen hundred years without showing any visible signs of rusting or corrosion. Evidence shows that the pillar was once a Garuda Stambha from a Vishnu temple. Made of pure iron, which even today can be produced only in small quantities by electrolysis. Such a pillar would be most difficult to make even today. Thus, the pillar defies explanation.
Other landmarks: Christ the Redeemer, Colossus, Delhi pillar, Eiffel tower, Golden Gate bridge, Great Buddha, Guggenheim Museum (Bilbao), Guggenheim Museum (NYC), Normandy bridge, Oresund crossing, Quebec Bridge, Statue of Liberty, Thames Barrier, Titanic, Tower of the Orologio
