It astonished visitors with its clear walls and ceilings that did not require interior lights. The introduction of the sheet glass method into Britain by Chance Brothers in 1832 made possible the production of large sheets of cheap but strong glass, and its use in the Crystal Palace created a structure with the greatest area of glass ever seen in a building. Designed by Joseph Paxton, the Great Exhibition building was 1,851 feet (564 m) long, with an interior height of 128 feet (39 m), and was three times the size of St Paul's Cathedral. The exhibition took place from 1 May to 15 October 1851, and more than 14,000 exhibitors from around the world gathered in its 990,000 square feet (92,000 m 2) exhibition space to display examples of technology developed in the Industrial Revolution.
The Crystal Palace was a cast iron and plate glass structure, originally built in Hyde Park, London, to house the Great Exhibition of 1851.