From secret catacombs, the ruins of a POW camp to a rare lift and an old police box Doctor Who would be proud of, how mny of these hidden treasures have you visited?
Here are some amazing places you may not have discovered yet . . .
5. Charcoal Burner's Grave - Ecclesall Woods
The Grade II-listed grave commemorates the death of one George Yardley who was burned to death in his cabin in 1786. Photo: Nancy Fielder
6. The Police Box
Dating from 1928 and located next to the Town Hall, it was one of 120 police boxes in Sheffield instigated by then Chief Constable Percy J Sillitoe. Photo: Marisa Cashill
7. Whinfell Quarry Garden.
Located in South West Sheffield, the gardens dates from the early 20th Century and was created from a derelict stone quarry and houses a collection of unusual trees and shrubs. Photo: Andrew Roe
8. Alfred Denny Museum of Zoology
Part of the University of Sheffield, The museum was established in 1905 and named after the department's first professor of biology, Alfred Denny. Many of the specimens have been in the museum since the early 1900s when collecting was at its peak. Photo: JPI Media