Château-Thierry is a small city in the north-eastern part of France, situated on the banks of the Marne River. The city is well known for its beautiful medieval castle, which was built in the 12th century and is now a popular tourist attraction. The castle is surrounded by a large park, which is a great place for a relaxing walk on a sunny day. The city also has a few interesting museums, including the Museum of the French Resistance and the Museum of the First World War. There are plenty of restaurants and cafes in the city centre, as well as a few small shops. Château-Thierry is a great place to visit if you want to see a beautiful medieval castle and learn about the history of France.