Day 1 - Cathedral & Old Town: Start at Cologne Cathedral, climb the tower (533 steps) for views. Explore adjacent Old Town's medieval streets and squares. Lunch at riverside beer hall sampling Kölsch beer. Visit Great St. Martin Church. End with sunset from Hohenzollern Bridge. Evening stroll along Rhine embankment.
Day 2 - Museums & Culture: Begin at Wallraf-Richartz Museum (European art collections). Lunch in nearby café. Afternoon at Museum Ludwig (Picasso and contemporary art). Visit rooftop terrace for cathedral views. Evening exploring Südstadt's fine dining and boutique shopping. Dinner at upscale restaurant.
Day 3 - Modern Neighborhoods: Explore trendy Ehrenfeld district's street art and galleries. Lunch at hip café or vintage shop restaurant. Browse independent boutiques and design studios. Visit RAW-Gelände cultural venue. Afternoon at Flora Botanical Garden for peaceful nature experience. Evening in Nippes neighborhood experiencing local beer culture.
Day 4 - Rhine Valley Excursion: Train to wine region (Rüdesheim/Bingen). Visit terraced vineyards and wine tastings. Cable car ride with panoramic views. Explore medieval castle ruins. Riverside walk through charming villages. Wine bar dinner. Return to Cologne by evening.
Day 5 - Day Trip to Bonn: 20-minute train ride to Bonn. Visit Beethoven House and Bonn Minster. Explore park-filled Old Town and riverside walks. Museum visits (political or art focused). Traditional German restaurant lunch. Afternoon shopping and cafés. Return to Cologne with time for evening activities.