The first-ever public investigation into paranormal activity at Sheffield Town Hall will be taking place at the weekend.
The Grade I listed building, which was formally opened in 1897, has never previously hosted a ghost hunt.
But, from 9pm on Saturday, the imposing stone landmark will be subject to seances, table tipping experiments and use of the latest electrical ghost hunting equipment.
Simply Ghost Nights, a specialist ghost hunting company run by Stuart and Rosey Dawson, is carrying out the investigations.
They said participants hope to make some spooky discoveries.
For more information and to buy tickets for the event, call Simply Ghost Nights on 0843 2891215 or visit www.simplyghostnights.co.uk