The TV Tower keeps showing up at the end of Berlin streets. These free viewpoints outside Mitte line it up with an avenue, a river or a hill, and each needs its own hour.

Fotografiska stays open until 23:00, C/O Berlin is free for under-19s, the Newton museum shuts on Mondays and from 16 November. Which of Berlin's four photography venues fits your free hours, with a clock that checks your day.