You'll never guess what they found under these Sheffield streets
Ancient crypts, Second World War air raid shelters, and Victorian sewerage systems are just some of the things that can be found under the streets of our city.
A giant storm drain called 'Megatron' lies directly beneath Sheffield city centre
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.
The city developed at the confluence of the River Sheaf and River Don but the Sheaf has been hidden underground since the mid-19th Century.
The waterway that gave Sheffield its name is directed through culverts under the railway station and city centre.
A complex of Victorian tunnels includes a large, brick-vaulted "cathedral" often called the Megatron.
Sign up to our daily newsletter
The i newsletter cut through the noise
Sheaf and Porter River Trust now operate Megatron Tours deep under the city
Sheaf and Porter River Trust Megatron Tour, pictured is Anthony Wood, a River Trust Volunteer and Guide
The infamous Hole in the Road was built in 1967. The main feature was a kind of giant oculus through a curved roof in the middle of the busy roundabout, exposing the underpass network.
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
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
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
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.
In January 2005 a mild steel sculpture of a bear (2.4m tall) was installed, to remind people of the former use of this structure. This picture show teams lining up for Great All Sheffield Quiz
A train leaving Sheffield Victoria along the Wicker Arches. The structure is Grade II listed and is a well known landmark for many Sheffielders.
The Wicker Arches were built in 1848 and form a 660-yard (600 m) long railway viaduct across the Don Valley
The central arch was hit by an unexploded bomb during the Second World War but did not collapse and was repaired. This picture shows the marchers on the unemployed march make their way through the Wicker Arches on their way to a meeting at the City Hall, Sheffield May 1981
Steve Wagstaffe in the former air raid shelter discovered at the rear of his business premises, Alleqip in Attercliffe in the late 1990s
The air raid shelter cover at Eye Witness Works on the corner of Milton Street and Headford Street
The air raid shelter discovered in 2009 under the playground at Catcliffe Primary School in Rotherham
King Edward V11 AS Archaeology students Richard Scholey, John Crowley and James Hughes-Lawson pictured in the WW11 air raid shelter under the school in 2005
Constuction workers getting the gatehouse to the General Cemetery ready for its opening in 2012. Bricklayer John Shultz pointing inside the catacomb underneath the gatehouse.
A university is trying to help unravel a centuries-old mystery after it was revealed 15 bodies have disappeared from the burial crypt of an important family - including three Earls of Shrewsbury. Workmen at Sheffield Cathedral discovered the historical mystery when they stumbled across the entrance to Shrewsbury tomb - only to find just two coffins inside.
At least 17 members of the Shrewsbury family, who were the Lords of Sheffield Manor for generations, were laid to rest beneath the 500-year-old chapel and are now missing.
Canon Simon Cowling looks down into the crypt which has been discovered at Sheffield Cathedral in 2013.
Furnival Street new footbridge under construction in 1966. This has been well-used throughout the decades as it connects shoppers between key retail hubs in the city centre.
Charter Square subway opening in 1966. The area has undergone a huge multi-million pound transformation in recent years to link the city centre to The Moor shopping hub.
A car in the pedestrian subway in Fitzalan Square, Sheffield in April 1979. The area has been redeveloped in recent years including the planing of 12 new trees around the statue of King Edward VII.
