Auf Wiedersehen, Tegel Airport

Rajan Datar visits Berlin's Tegel Airport as the city says goodbye to the distinctive and divisive hexagonal terminals; we're training for the Paris marathon with a student who hopes he can run his way to better mental health post-lockdown; and we catch up with adventurer Jason Lewis and his wife Tammie on the second leg of their attempt to circumnavigate Wales by human power alone.