That’s the question we posed to the 3,700 members of the Sunderland Echo’s special nostalgia page on Facebook.
Dozens of members of the page called Wearside Echoes gave their replies and we have selected 13 of their choices to share with you.
Is your favourite among them? Or is there another former building you would have included on this list?
Take a look and tell us more.
1. Top of the list
The Town Hall, pictured in 1964, was the one demolished building most people would love to have back. It was bulldozed in 1971. Photo: Sunderland Echo
2. Crowtree Leisure Centre
Another popular choice was the Crowtree Leisure Centre. Here it is in 1977 and it was demolished around 35 years later. Photo: Sunderland Echo
3. Roker Park in 1964
Lots of you loved Roker Park, pictured here in 1964. Photo: Sunderland Echo
4. Newcastle Road baths
Did you love the Newcastle Road baths? Christine Smith Lemon is among those who did. Photo: Sunderland Echo