Essen is a city in the Ruhr region in North Rhine-Westphalia in Germany. With a population of around 590,000 it is the fourth largest city in the state and one of the ten largest cities in Germany. The history of Essen dates back to the 9th century, when the city was first mentioned in documents. In the Middle Ages, Essen developed into an important center of mining and iron processing. Later, the city was mainly characterized by the coal and steel industry. Today, Essen is a modern city with a diverse economic structure. In addition to industrial companies, there are also numerous service and trading companies. Essen is also an important trade fair location and is home to Messe Essen, one of the largest trade fairs in Germany. 

The city of Essen offers a wide range of cultural and leisure activities. Among the most famous sights are the Zollverein Coal Mine, a UNESCO World Heritage Site and a symbol of structural change in the Ruhr region, and Villa Hügel, an imposing mansion that was once home to the Krupp family of industrialists. Essen has a well-developed public transportation network that allows residents to travel comfortably throughout the city. In addition, Essen is connected to the highway network and has an international airport. The city of Essen is also known for its culinary specialties. The most famous dish is currywurst, which was invented in Essen.