Will Knight used drones to help him make the artwork, which is an incredibly detailed snapshot of modern Glasgow, while his predecessor, Thomas Sulman, did his research in a hot air balloon. Now, both the Sulman map of 1864 and the Knight map are being displayed side by side in an exhibition at the New Glasgow Society on Argyle Street. The exhibition also uses interactive elements to encourage visitors to ponder what the city will look like in the future. The Knight map, commissioned by Glasgow City Heritage Trust (GCHT), is part of the organisation’s Gallus Glasgow project, which explores the development of Glasgow during the Victorian period.