Dillenburg Castle is a historic fortress located in the town of Dillenburg, Germany. Built in the 13th century, it served as the ancestral seat of the House of Orange-Nassau, a prominent noble family in European history. The castle features a mix of architectural styles, reflecting its long history and various renovations over the centuries. The castle is situated on a hill, offering panoramic views of the surrounding landscape. Today, it is a popular tourist destination, attracting visitors interested in its rich history and beautiful scenery. The site also hosts cultural events and exhibitions throughout the year.