Two structures one should be saved, the other demolished immediately. Most towns have a large abandoned building which should have been pulled down years before but is just left to decay while the windows smash and the graffti grows. Some big ugly landmark blighting the area like a big puss filled spot on the edge of a nose. I remember pulling into Temple Meeds station in Bristol where a ghastly old tower block is the first thing travellers see of the city which hardly gave a good impression. The former college building is just one of many around the country. The planning and development system should be changed to encourage such blot's on the landscape to be torn down as soon as possible.
The other building is from the Victorian era in what seems to have been re-branded as the heritage area but is known to many locals as the railway village.
The Mechanics Institute was one such building that avoided the attentions of demolition happy post war town planner, a lot of whose efforts have been torn down themselves. It was the site of one of the first public library in Britain and the Medical Society Fund the sort of cradle to grave care that the NHS was modelled on, a century later. Sadly it has seen better days, having been left to decay for as long as I can remember.
I'm tempted to try and start up some sort of meme where I ask others to suggest a building in their area that should be demolished immediately and one that should be saved.