Did you know that the tube signalling cabin at Edgware Road station is 90 years old? No wonder the District line is always so unpredictable. Still, 90 years of service isn't bad going, and now the cabin is being retired to make way for some shiny new technology, which will mean a 33 percent increase in trains running through the station by 2020.
But don't despair, tube enthusiasts. The transport relic isn't going on the scrap heap. It's been designated as an item of national historic interest by the Railway Heritage Designation Advisory Board, and TfL is planning to open it up to the public in the future. But until then, check out these photographs to have a sneak peak inside the old cabin.
Here's what it looked like back in the day:
And here's what it looks like now: