Kętrzyn is a town located in northeastern Poland, within the Warmian-Masurian Voivodeship. It has a rich history, dating back to the 14th century, and was originally founded by the Teutonic Knights. The town is known for its medieval architecture, including the Kętrzyn Castle, which is a significant historical landmark. The town is situated near the Masurian Lake District, making it a popular destination for outdoor activities such as hiking and boating. Kętrzyn also serves as a cultural hub, hosting various events and festivals throughout the year, which attract both locals and tourists alike.