Perfume Museum in Cologne
Köln, Obenmarspforten, 21 
The exposition of the museum of spirits (Duftmuseum im Farina-Haus) is devoted to the history of perfumery art and cologne - "Eau de Cologne", whose homeland is Cologne. The museum presents distillation apparatuses, photographs and pictures depicting the process of production of perfume.
The Ludwig Museum in Cologne
Köln, Heinrich-Boll-Platz 
The basis of the exhibition of the Museum Ludwig (Museum Ludwig) was a collection of German businessman Peter Ludwig, after the death bequeathed his meeting to the city.
Chocolate Museum in Cologne
Koln, Am Schokoladenmuseum, 1a 
One of the most attractive museums for tourists is the Cologne Museum of Chocolate, which opened in 1993 in the city, near the famous chocolate factory. The interest is not only the opportunity to get acquainted with the basics of modern chocolate business and artistic works of chocolate, but also the museum building itself, which stands on the island and resembles a ship.
Center for Nazi Documentation in Cologne
Köln, Appellhofplatz, 23-25 
The exposition of the Nazi documentation center (NS-Dokumentationszentrum) is located in the building since 1934 by the former headquarters of the secret state police of the Third Reich-Gestapo.
The ethnological museum of Rautenstraukha-Josta
Koln, Cacilienstrasse, 29 
At the heart of the exhibition are two themes - awareness of the world and its construction. Visitors are told about what drives people, about the role of religion, about rituals of farewells to the deceased, about the treatment of guests or about how women and men get along with each other.
In addition to its other advantages, Cologne has one more: it is one of the largest museum and exhibition centers in Germany .In Cologne, an incredible number of art galleries is open; on this indicator it is second only to New York .Speaking of galleries, we can not fail to mention the museum of Valraf-Richard, which occupies the building of the City Museum of Cologne .In this gallery you can see the world's most extensive collection of paintings from the Middle Ages, in particular, the Cologne school .Also in the gallery is a very good selection of paintings written after the middle of the 16th century, including baroque, and the most recent works until the early 20th century .Among the names of authors whose creations can be seen here are Peter Paul Rubens, Antonis van Dyke, Josef Koch, Gustav Courbet, Max Lieberman, Vincent van Gogh, Edvard Munch, sculptors Pierre-Auguste Renoir and Auguste Rodin .
In Cologne, an incredible number of art galleries is open; on this indicator, it is second only to New York.
The famous Museum of Ludwig, of course, also can not be ignored. It stores one of the most valuable collections of contemporary art in the world. The collection was based on the work of German expressionists from a private collection, then supplemented by a vast collection of art objects in the style of pop art. Here you can see the works of such famous authors as Kandinsky, Lisitsky, Picasso (about 90 works) and Malevich.
The archaeological Roman-German museum was created by the merger of two museums after World War II. One of the most brilliant pearls of his collection can be considered a mosaic of Dionysus, which was accidentally discovered in 1941. In addition, the museum exhibits archaeological finds from the Stone Age to the early Middle Ages.
In Cologne, the city where the cologne was invented, the Spirit Museum (Farin's House) is worth a visit. Its exposition takes several floors, and, examining it, you can learn more about how to produce cologne in the earliest period. Including visitors can see old appliances traditionally used in the manufacture of perfume, such as large vessels for distillation.
Perhaps Cologne can not compete with Swiss or Belgian cities in the sense of chocolate glory, but the Museum of chocolate is there. It was opened at a large chocolate factory in 1993 and has an interesting location on the island, in an interesting ship-like building.
The Museum of Ethnography of Rautenstrauch-Jost is dedicated to two main issues: the creation of the world and its perception. By creation, in this case, we mean not the divine process, but the work of human hands. Through the prism of history in this museum there are such topics as religious rites, customs and relations in human society, etc.
Other Cologne museums that are worth visiting are the City Museum, the A. Schnutgen Museum of Medieval Art, located in the Church of St. Cecilia, the Museum of East Asian Art, the Museum of Applied Arts, the Archbishopric Art Museum, the Treasure Museum at the Cathedral, Museum of beer, German Museum of Sports and Olympic Games, Museums of Internet technologies in contemporary art, a zoo and a botanical garden, and a tropical greenhouse.