Take a look at the weird and the wonderful things that lie beneath our feet as well as pictures of people waiting to use an underground subway for the first time as we delve deep and explore Sheffield's subterranean past.
5. Castle Square subway
Many buildings in the vicinity of the Market Place were damaged or destroyed on the night of 12 December 1940, when German aircraft bombed Sheffield. The bomb sites were cleared but most remained empty for many years. In 1968 many old streets were cleared to make way for the new Arundel Gate, a dual carriageway road that terminated at a large roundabout built on the former market place. Underneath the roundabout a network of underpasses and shops was built Photo: Sheffield Newspapers
6. Demolition of Hole in the Road
Although considered by many to be a major city landmark, like many constructions of its time, it did not age well and was very dilapidated by the early 1990s. It lasted from 1967 until 1994 Photo: jp
7. The old bear pit
The Bear Pit is the finest surviving example in the UK This is a Grade II listed structure and was built in 1836 to home a black bear in what is now the Botanical Gardens Photo: Nancy Fielder
8. The old bear pit legend
In 1855 Sir Henry Hunloke presented two brown bears to the Gardens although little is known about how long they remained there. Local legend relates that a child was killed after falling into the pit around 1870. Pictured in 2014 is Simon Kent with his installation in the Bear Pit in Sheffield Botanical Gardens. Photo: Scott Merrylees