Here is a picture gallery of the most popular answers.

13. Unique and historic buildings
Some of Sheffield's unique and historic building would be sorely missed, such as the Park Hill flats, which dominate the city's skyline. Photo: JPI Media
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Here is a picture gallery of the most popular answers.

Some of Sheffield's unique and historic building would be sorely missed, such as the Park Hill flats, which dominate the city's skyline. Photo: JPI Media