Κιλκίς is a city in northern Greece, serving as the capital of the Kilkis regional unit. It is located near the border with North Macedonia and is known for its agricultural production, particularly in grains and tobacco. The city has a rich history, with archaeological sites that reflect its ancient past. The surrounding region features diverse landscapes, including mountains and plains, making it ideal for outdoor activities. Kilkis is also home to several cultural events and festivals, celebrating local traditions and heritage. The area is well-connected by road and rail, facilitating access to other parts of Greece.