What should I avoid in Berlin?

The Checkpoint Charlie museum at Friedrichstraße 43 charges about €17.50 for a cramped, poorly lit exhibit that hasn't been meaningfully updated in years. The free outdoor display along Zimmerstraße covers the same Cold War escape stories with original photos mounted on weatherproof panels, and you can read the whole thing in 20 minutes. For the full Wall story, the Gedenkstätte Berliner Mauer on Bernauer Straße is free, stretches about 1.4 kilometers of preserved wall segments, and has a documentation center with a viewing tower overlooking the former death strip. Madame Tussauds on Unter den Linden charges about €26 for the same wax figures as London or New York. The revolving restaurant inside the Fernsehturm runs about €25-40 per person for food that doesn't match the 203-meter view. You get a comparable panorama from the observation deck at about €22 without committing to a meal.

Any restaurant within sight of the Fernsehturm with a laminated photo menu and a host waving from the doorway charges roughly €14-18 for a currywurst that costs €3.90 at Curry 36 on Mehringdamm. The same markup applies to most of Unter den Linden east of Friedrichstraße. That 1-kilometer strip smells like reheated oil and tastes like it too. The döner spots along Kottbusser Damm in Kreuzberg run €5-7 and are better than anything within walking distance of Museum Island. Mustafa's Gemüse Kebap near Mehringdamm draws a 30-45 minute queue most days. The warm flatbread, the lightly charred grilled vegetables, the crunch of fresh cabbage. If the line is too long, Rüyam Gemüse Kebab on Hauptstraße in Schöneberg serves a comparable version with a 5-minute wait. To be fair, the one tourist-zone exception might be Zur Letzten Instanz near Klosterstraße. Berlin's oldest restaurant has been open since 1621, the Eisbein runs about €16, and the vaulted dining room smells like dark beer and pork fat.

The petition-clipboard scam at Brandenburg Gate works like this. Someone asks you to sign for a charity, usually "deaf children" or "against drugs," then demands a €10-20 donation once you've written your name. Walk past. The three-card monte tables near Hackescher Markt and on Alexanderplatz are staged. The "winners" you see are part of the crew, and you will lose €50 in about 90 seconds. Fake police occasionally approach tourists near Potsdamer Platz and ask to check your wallet for counterfeit bills. Real German police carry a green-and-white Dienstausweis and never handle your cash. On the U-Bahn and S-Bahn, Berlin runs an honor system with no turnstiles. Plainclothes inspectors, called Kontrolleure, board without warning, check tickets mid-ride, and issue a €60 fine on the spot. A single AB-zone ride costs €3.50. The math does not favor dodging.

Berlin shuts down on Sundays. Not "quieter than usual." Closed. The Ladenschlussgesetz keeps virtually every shop, supermarket, and pharmacy locked until Monday morning. Spätkauf corner stores stay open, and some bakeries too, but if you need groceries or toiletries, buy them on Saturday. Restaurants and museums operate normally, and the streets in Prenzlauer Berg smell like fresh bread from the few open Bäckereien, but the stillness catches first-timers hard. Mauerpark hosts its flea market on Sundays from roughly March through October, drawing 10,000-15,000 people. That's the one Sunday exception worth planning around. Winter timing is the other surprise. In December and January, the sun sets before 4pm, and temperatures sit around -2°C to 3°C with a damp wind off the Spree that cuts straight through cotton. You'll want a proper lined jacket, not a fashion coat. Summer can swing hard the other way. July 2019 hit 38.6°C, and few older Berlin apartments have air conditioning. The U-Bahn carriages on the older U6 and U9 lines have no AC either.

Görlitzer Park in Kreuzberg has had a persistent open drug market for years. The park fills with families and dog walkers during the day, but after dark the south entrance near Wiener Straße gets uncomfortable. Warschauer Straße station and the bridge to RAW-Gelände feel tense around 2-3am on weekends when the club crowds thin and a few aggressive panhandlers work the platform. Kottbusser Tor has a reputation that's somewhat overblown during daytime but earned after midnight. None of these spots are dangerous in any serious sense, but they feel rougher than Mitte or Charlottenburg at the same hour. The U8 line between Hermannstraße and Gesundbrunnen tends to attract more late-night incidents than other lines. If you're coming home from a bar in Neukölln after 1am, the U7 to Rathaus Neukölln is a calmer ride than the U8 from Hermannplatz.