This former airport has an interesting backstory. In the past, it was the airport into West Berlin, and hence important for transport and in particular to bring goods into the city.
Since Berlin has been unified, they build a new airport, and Tempelhof airport was no longer required. But instead of building apartment or office buildings, it has been turned into a public space. The runways and all the old signage is still there, but you can now use the space as a traffic-free play area.
So I ran the entire length of the runways, and saw people skateboarding, cycling, roller-blading etc. It was great to see the space being used by the community, but it also felt a little surreal going for a run on a runway.
By the way, the runway is over 2km long, it would make a perfect location for parkrun.
The old terminal building. Useless fact, when the Beatles played in Berlin they landed here.
A hand-cyclist enjoying the runway