By Ben Barresi and Alisa AydinThe world’s largest wrought iron structure, Raleigh’s wrought iron canopy, is one of the most iconic structures in the world.The towering, glass-walled structure was constructed in the late 17th century and was the focal point of the city of Raleigh, North Carolina, from 1783 until 1791.The structure, which measures around 8 metres in height, was […]