- State Historical Society of Iowa (SHSI)
Serves as a trustee of Iowa's historical legacy and an advocate for understanding Iowa's past.
- Living History Farms
Open air museum in Iowa, dedicated to faithfully restoring the era of the midwestern pioneer.
- National Czech & Slovak Museum & Library
Established in 1974 to collect, preserve, and share the physical objects and intangible manifestations of Czech and Slovak history, culture, and language.
- Silos and Smokestacks
Nonprofit partnership dedicated to preserving Iowa's contributions to world agriculture through creating America's Agricultural Heritage Partnership, a National Heritage Area of sites, activities, and events in northeast Iowa.
- Fort Des Moines Memorial Park
Honors the U.S. Army's first officer candidate class open to African American men in 1917, and the establishment of the Women's Army Auxiliary Corps (WAAC) in 1942.
- Carrie Chapman Catt Childhood Home
About the woman suffragist, the history of the suffrage movement, and efforts to restore Catt's Iowa home. Includes a bibliography, gallery, and links.
- Floyd County Historical Society and Museum
Midwest rural county museum featuring depictions of early and recent prairie life, both agricultural and industrial.
- Herbert Hoover National Historic Site
Includes the cottage where Hoover was born, the Herbert Hoover Presidential Library-Museum, the gravesites of President and Mrs. Hoover, and a 76-acre tallgrass prairie.
- Heritage Park of North Iowa
Offers demonstrations in grain threshing, log sawing, plowing, ensilage cutting, oat hulling, and more.
- Iowa Battle Flag Project
Official web site of the State of Iowa's Civil War flag stabilization project.
- Anamosa State Penitentiary
Chronicles the history of the 129-year old maximum security Iowa prison.
- Iowa Third Cavalry
One of nine cavalry regiments mustered into service in Iowa during the Civil War.
- George Reeves Memorial
Official site of the George Reeves Memorial, dedicated to preserving the birthplace of actor George Reeves.
Includes the names Abrams, Sperry, Slacks, Hamilton, and more. Also contains a resource for several lineages based in Iowa.
- Harrison County Iowa GenWeb
Part of the USGenWeb project to promote genealogical research on the Internet.
- Bremer County, Iowa GenWeb
Genealogical information on Bremer County, including the cities of Waverly, Sumner, Plainfield, Frederika, Denver, and Janesville.
- Shelby County Iowa Genealogy
Part of the USGenWeb and IAGenWeb Projects.
- Historical Tour of Black Hawk County
Online tour of over 150 historical sites in the county. Including historical information, black and white sketches, and some photographs.
- Muscatine County Iowa Genealogy
Genealogical resources and online vital records, and cemetery records of Muscatine County Iowa, part of the UsGenWeb and IAGenWeb.