New York has its Highline Park. Should Berlin have a lowline bike path under the U1 tracks? We interview a team member behind the idea for the U1 Radbahn. There's controversy over plans to rename some streets in Wedding, where a citizen's jury trying to replace German colonialist names somehow selected the name of a slave trader instead. Our guest Kilian Flad tells us about the revisionist history of street names. And our friend Konrad Werner is back to talk about whether Germany has an equivalent to Jeremy Corbyn in the coming federal election.