The
National Historic Landmarks in Indiana represent
Indiana's history from the Native American era to its early European settlers and
motor racing. There are 40
National Historic Landmarks (NHLs) in the state, which are located in 22 of its
92 counties. They illustrate the state's industrial and architectural heritage, as well as battles, circuses, education, and several other topics. One of the NHLs in the state has military significance, fourteen are significant examples of different
architectural styles, nine are associated with significant historical figures, and one is an
archaeological site. Two NHL properties, both ships that were formerly located in Indiana, were later moved to another state.