Cologne
Towering cathedral and the friendliest city on the Rhine.
Cologne is Germany’s warmest, least formal big city — the colossal Cologne Cathedral (Europe’s 3rd-tallest), 2,000 years of Roman foundation, and Germany’s biggest Carnival (February Karneval). “Kölsch” the beer and “Kölsch” the dialect both belong only to here. 2 days for the city, plus a beer-hall crawl in the evening.
Best time to visit
May–September ideal: 18–24°C, Rhine riverside cafés + biergarten busy. February (around Mardi Gras) is Karneval — “Three Mad Days” (Weiberfastnacht Friday + Rosenmontag Monday parade with 1 million people) is incredible but hotels book a year out at 5×. December has classic Christmas markets (Cologne Cathedral plaza is the biggest). January–February (outside Karneval) is calm and cheap. Christopher Street Day (early July) is Germany’s biggest LGBT festival.
How many days?
2 days enough: 1 day Cathedral + Roman-Germanic Museum + Old Town + Rhine waterfront walk, 1 day Chocolate Museum + Belgian Quarter + Schildergasse shopping + beer-hall crawl. 3+ days for Bonn (former West German capital, 25-min train), Aachen (Charlemagne’s cathedral, 1 hour) day trips.
What to see
Cologne Cathedral (Kölner Dom — UNESCO, 632 years to build, 533 steps to the tower, free; treasury 6€), Roman-Germanic Museum (Roman Cologne “Colonia Claudia Ara Agrippinensium” remains), Hohenzollernbrücke (love-locks bridge over the Rhine, sunset spot), Old Town + Rhine waterfront (Heumarkt + Alter Markt), Chocolate Museum (Schokoladenmuseum — Lindt sponsor, 16€, set on a Hochzeitsschiff ship), Cologne Cinema Museum, Belgisches Viertel (Belgian Quarter — alt cafés + boutiques). Lesser known: KölnTriangle rooftop view (best view of the cathedral — 5€ elevator), Flora botanical garden, Rheinpark, Cologne Zoo (Germany’s 3rd-largest). Bonn day trip: Beethoven’s house.
Food & drink
Kölsch beer (only made in Cologne by law — served in 0.2L glasses, refilled automatically, place a coaster on top to signal “stop”). Beer hall must: Päffgen, Früh am Dom, Sünner im Walfisch — average 2€ Kölsch + 12–18€ mains. Classics: Halve Hahn (cheese + rye + onion — not actually “half a chicken”), Himmel un Ääd (heaven + earth — mash + apple + blood sausage), Reibekuchen (potato pancakes with apple sauce), Mettbrötchen (raw mince sandwich — real German thing). Sweet: Müllemer Böötchen on the Rhine. During Karneval: Berliner (jelly donut). Turkish dürüm on every corner — Germany does this well.
Getting around
KVB U-Bahn + tram + bus + S-Bahn (DB): Single 3.40€, day pass 8.50€, 4-week 100€. Cologne/Bonn airport (CGN): S13 train 15 min 3.40€, taxi 30€. Düsseldorf airport (DUS): RE/RB train 30 min 8€ — pick DUS if it has more flights. Cologne Hauptbahnhof is the European train hub (Brussels 1.5 hours ICE, Paris 3.5 hours Thalys). Center walkable (Cathedral → Old Town → Belgian Quarter is 30 min). Bike: KVB Rad first 30 min free.
Things to watch out for
Karneval week: whole city in costume + drinking, offices closed, book hotels a year out. “Free city tour” guides press for tips — 5–10€ is standard. Rhine waterfront on a sunny Sunday gets crowded + pickpocket-prone. Hauptbahnhof after 11 PM, stay alert. Düsseldorf vs Cologne rivalry: don’t order Kölsch in Düsseldorf (they drink Altbier; vice versa — local joke but menus don’t carry the other). Tipping 5–10%. EU passports visa-free 90 days. Karneval has lots of public kissing — Cologne is open, but ask first.
Budget estimate
Economy €50–80/day (hostel, supermarket + 1 beer hall, KVB day pass). Mid €90–160/day (3★ hotel, restaurants, 1–2 museums). Luxury €250–500/day (4–5★ Excelsior Hotel Ernst, fine dining). 2-day mid trip €200–350 (flights excluded). Karneval season 3–4×. Flights from Europe €40–200 (Eurowings, Easyjet, Ryanair). Düsseldorf often has cheaper flights (DUS hub). Museum discount: KölnCard 24/48 hour transit + museums 9–18€.