Sentinel Works

In the Southside of Scotland's largest city is a grey crumbling building which looks like it has seen much better days. The Sentinel Works building was designed by Archibald Keir Leitch, a man also responsible for many iconic football stadia across the British Isles, from Anfield to Windsor Park.

Built in 1904, the factory was constructed for Glasgow-based engineering company Alley & MacLellan Ltd. Its construction was revolutionary, as it was one of the first buildings to be built using François Hennebique's reinforced concrete method.

The building is now the UK's third-oldest reinforced concrete building. The building has had mixed fortunes in recent times. Despite a Category A listing in 1991, it was threatened with demolition just 2 years later. Thankfully, the application was rejected. However, just a year later it was added to Scotland's Buildings At Risk Register. The building has all of its glazing missing and some of its concrete is crumbling, so the interior is now off-limits to the public, but you can still admire it from the exterior.