Leavenworth, Kansas, is a city located in the northeastern part of the state, along the banks of the Missouri River. Founded in 1854, it is one of the oldest cities in Kansas and has a rich history tied to the westward expansion of the United States. The city is known for its historic architecture and vibrant community. Leavenworth is also home to several military installations, including the United States Penitentiary and the Fort Leavenworth, which is the oldest active military post west of the Mississippi River. The city offers various recreational activities, parks, and cultural events for residents and visitors alike.