Leavenworth County Kansas (Historic Districts) has 11 places on the National Register of Historic Places including 2 places of National significance. Significant places include Fort Leavenworth and Western Branch, National Home for Disabled Volunteer Soldiers, Arch Street Historic District, Leavenworth Downtown Historic District and Leavenworth Historic Industrial District.
Some of the country's most noteable architects helped create the Leavenworth County places including James A. McGonigle, Curtiss, Louis, et al., William Pratt Feth, Myron K. Feth and Louis Curtiss. Prominent architectural styles found in Leavenworth Country are Greek Revival, Italianate and Queen Anne.