Cologne Cathedral, a renowned landmark in Germany, is a High Gothic masterpiece offering stunning architectural views and historical significance. Accessibility is generally good, with ramps and elevators available, though some areas may be challenging for those with mobility issues. Solo visits are common and allow for self-paced exploration, but guided tours provide deeper insights into the cathedral's history and art. There are generally no seasonal restrictions, though visiting during Advent or Christmas offers a special atmosphere. Entry to the cathedral is free, but climbing the tower and visiting the treasury require tickets, with an approximate cost of €5-€10 per activity. A typical visit lasts 2-4 hours, depending on the level of detail explored. Be prepared for crowds, especially during peak tourist season.