Visit Cologne old town area (15min drive from apartment). There are a number of car parks. A centrally located one is Parkhaus Hohe Straße, Marspfortengasse 10, 50667 Köln, Germany.
Breakfast at either (1) Funkhaus Cafe Bar Restaurant. Wallrafplatz 5, 50667 Cologne, or (2) Merzenich Backereien. Wallrafplatz 4, 50667 Cologne
Take a walk through the following attractions
• Cologne Cathedral. This giant Gothic cathedral, which until its completion in 1880 had been under construction for over 500 years, is perhaps Germany's most famous religious structure and includes two huge towers that serve as the defining symbol of Cologne's skyline.
• 4711 Eau de Cologne (optional)
• Fragrance Museum Farina-House - Get a whiff of the place where Eau de Cologne was born. Learn about perfume essences and attractions and let your nose lead you thorough history. Guided tour required, pre-booking recommended.
• Alter Markt
Possible Lunch places:
(1) Gast und Weinhaus Brungs. Marsplatz 3-5, 50667 Cologne. Good Trip advisor review.
(2) Keule. Heumarkt 56-58, Cologne. Good Trip advisor review.
(3) Hauxenhaus豬腳百年名店 (Haxe是豬腳，Schweinshaxe是烤的豬腳，Eisbein則是煮的豬腳。). Frankenwerft 19, 50667 Cologne
Take a Cologne Cruise by KD. Daily up to 6 departures 10:30, 12:00, 13:30, 15:00, 16:30, 18:00. One hour Panorama cruise with explanations of the sights. Family ticket (2 Adults & 2 Children) ? 28. Frankenwerft 35, 50667 Cologne, North Rhine-Westphalia, Germany
In the afternoon, visit Cologne Chocolate Museum (Sat/Sunday open 11:00 - 19:00 hours, Mondays closed). Parking is available at underground carpark “Rheinauhafen”. The underground car park is very long so drive to the end of the red zone and use the final staircase, 1.01. An elevator can be found at exit 1.03.
In the evening, option to visit KolnTriangle’s Observatory (3 euros. Open until 10 p.m.)
