Cologne has several outstanding museums, but not all of them offer free admission. Many, such as the Museum Ludwig, the Wallraf-Richartz-Museum or the Roman-Germanic Museum, charge admission fees. However, there may be discounts for students, children or seniors. It may also be that reduced or free admission is granted on certain days or at certain times. Therefore, it is advisable to check the official websites of the museums for up-to-date information on prices and offers.