Mauerpark: the death strip and the Sunday flea
A park built on the old Wall, a legal graffiti wall, and the loudest karaoke in Berlin. This is a Claude-drafted route awaiting the editor's walk.

1. Eberswalder Straße (U2)
Up from the U2 viaduct and west toward the green. On a Sunday the crowd shows you the way; the whole neighbourhood is walking to the same place.

2. Mauerpark — the Wall
The surviving stretch of the *Mauer* (Wall) runs along the park's western edge — now a legal, repainted-weekly graffiti wall on the line of the old death strip. Walk the length of it; on a Sunday there are usually painters at work and a slackline or two below.

3. The Sunday flea market
The *Flohmarkt* fills the park's south end every Sunday — vinyl, bikes, GDR oddments, and a lot of street food. Come hungry and ready to haggle; it runs roughly 9 to 6. On any other day this is just lawn (set your visit accordingly — see the body note).

4. Bearpit Karaoke
The stone amphitheatre dug into the slope, where on summer Sundays Joe Hatchiban wheels in a bike-powered PA and strangers sing to a crowd of hundreds. Sit on the steps even if you'd never grab the mic; the nerve on display is the show.

5. Falkplatz
Over the rise into the quieter half — a calm tree-shaded square that was a Prussian parade ground, then part of the border zone. The contrast with the flea-market roar a few hundred metres back is the point. Catch your breath here.

6. Gleimtunnel
The long road tunnel under the rail tracks — a sealed border crossing during the division, the West on one side and the East on the other. Walk through it; the murals and the sudden cool make the old frontier physical in a way the open park doesn't.

7. Gesundbrunnen
The tunnel delivers you toward Gesundbrunnen — S-Bahn, U8, and the regional lines all under one roof. The fastest way back, or the start of the Wedding walk if you've got the legs.

Mauerpark: the death strip and the Sunday flea