Exterior of mill built for John Marshall, flax-spinner. Marshall was the son of a Briggate linen draper, he had worked with Leeds engineer Matthew Murray, on the development of flax-spinning machinery. He had built a mill in the Holbeck area to spin flax, business had extended to the extent that a new, larger mill was needed. This copy of the Temple of Horus, of Edfu, was built on the two-acre site. Designed by engineer David Roberts, and architect, Igratius Bonomi. The Egyptian link was influenced by Bonomi's brother, Joseph, an Egyptologist. Marshall was also fascinated by Eygption culture, flax-spinning had been one of Eygpt's important industries. Temple Mill was built between 1838-1840. It was a unique building, boasting of ducts for air-conditioning, the largest single room in the world, a giant obelisk for a chimney and a glass roof for light, later covered in grass for sheep to grazed on. Marshall became one of the first millionaires of the industrial revolution and was MP for Yorkshire between 1826-1830, Temple Works is a Grade I listed building, now used as offices.