Saturday 9th November 2019 was a momentous day in the history of Berlin. Yes, it was the one day a month that the Berlin U-Bahn Museum is open. By pure luck, its opening day coincided with my weekend in Berlin, so it was a natural choice to while away a few hours on Saturday afternoon.
I arrived at Olympia-Stadion station on the U2 line, to find stands of football scarves and fast food being set up in the ticket hall. Hertha Berlin were due to play at home later that day, and some fans were arriving early. While most made a beeline for the nearby stadium, I headed for the welcoming doorway to the museum, sandwiched between two replica train cabs.