Before 1857 there was an independent botanical garden near Cologne Cathedral. However, this had to give way to the construction of the main station in the same year. For this reason, an extra-founded corporation with many influential personalities planned a garden in the north of the city. With a size of 5.5 hectares and two replicas of historic gatehouses, the flora is in full splendor. Therefore, this unique ambience is also popular as a location for balls, weddings, concerts and other events. The centerpiece of the facility is the approximately 800 square meter ballroom, which can accommodate up to 900 people.