The Cologne Cathedral
Cologne's Gothic Cathedral is a UNESCO world heritage site and certainly one of its top attractions. It took over 600 years to build the Cathedral. It is ideally located right next to the train station. If you can climb 509 steps you'll get a good view of Cologne on the observation platform. In 2000, the Cathedral treasures were placed in a historic vaulted chamber so folks could view them easier. If you want to capture the astounding majesty of the Cologne Cathedral and its soaring spires, make sure you carry a wide-angle lens.
Open 6am to 7:30 pm, except during mass.
Visit the house of the original Eau-de-Cologne at Glockengasse, in the city centre between the cathedral and Neumarkt, opposite the opera house. Wilhelm Mulhens marketed a concoction called Aqua Mirabilis on the basis of its stimulating and refreshing effect. It later got to be known as the first Eau de Cologne when French Revolutionary troops sent it home for gifts to the family.
Roman-German Museum (Romisch-Germanisches Museum) - See Roman antiquities from the first through fourth centuries. See the 230 foot long mosaic showing Dionysus, the Roman god of wine.
Try a brew and a bite to eat in the Altstadt, in the old town. Cologne is a beer city with their own beer called Kölcsh, a pale top fermented beer that must be brewed in the Cologne metropolitan area. Most of the breweries in the city center are gone; but you can still enjoy a beer at a pub in the Altstadt.
Rhine Boat Trips - lots of day trips and longer excursions are available. Ask at the tourist office.