Indiana - Criteria: C (architecture/engineering)
| Bethel A.M.E. Church |
| Bethel Church and Graveyard |
| Bethel Methodist Episcopal Church |
| Beverly Shores-Century of Progress Architectural District |
| Bevier, Samuel, House |
| Big Four Depot |
| Big Rocky Fork Bridge |
| Big Run Baptist Church and Cemetery |
| Billie Creek Bridge |
| Bingham, Joseph J., Indianapolis Public School #84 |
| Birdsall, Mary, House |
| Bitterman Building |
| Blacherne |
| Blackford County Courthouse |
| Black, Rufus and Amanda, House |
| Blackstone Building |
| Blackstone House and Martinsville Telephone Company Building |
| Blackstone-State Theater |
| Blankenship-Hodges-Brown House |
| Blanton, Forest W. and Jeannette Wales, House |
| Bloch, Conrad and Catherine, House |
| Bloomington City Hall |
| Bloomington West Side Historic District |
| Blue Bell Inc., Factory Building |
| Blume, Martin, Jr., Farm |
| Boehne, John W., House |
| Boggs, Lewis and Sarah, House |
| Boone County Courthouse |
| Boonville Public Square Historic District |
| Bottorff-McCulloch Farm |
| Boulders, The |
| Bowers, John S. House |
| Bowman, Joseph, Farmhouse |
| Bowsher Ford Bridge |
| Boyce Block |
| Bozeman-Waters National Bank |
| Brackett, Lyman M., House |
| Bradford Estate |
| Brady Street Historic District |
| Brannon, James, House |
| Braxtan, Thomas Newby, House |
| Brazil Downtown Historic District |
| Breechbill-Davidson House |
| Bremen Water Tower |
| Brendonwood Historic District |
| Brethren in Christ Church |
| Bridge Street Bridge |
| Bridgeton Bridge |
| Bristol-Washington Township School |
| Broad Ripple Firehouse-Indianapolis Fire Department Station 32 |
| Brock, Pryor Farmstead |
| Bromwell Wire Works |
| Brookview-Irvington Park Historic District |
| Brookville Historic District |
| Brown County Bridge No. 36 |
| Brown County Courthouse Historic District |
| Browne-Rafert House |
| Brown, George, Mansion |
| Brown, John, Stone Warehouse |
| Buckley Homestead |
| Building at 23-27 S. Sixth Street |
| Building at 510-516 Ohio Street |
| Building at 810 Wabash Avenue |
| Burnham, John and Isabel, House |
| Burton |
| Buschmann, William, Block |
| Bush Stadium |
| Busse House |
| Butler Community Mausoleum |
| Butler Fieldhouse |
| Butternut Hill |
| Byram-Middleton House |
| Cadick Apartments (Plaza Building) |
| Cambridge City Historic District |
| Camden Masonic Temple |
| Campbell, Henry F., Mansion |
| Campbell, Leander, House |
| Canal House |
| Cannelton Cotton Mills |
| Cannelton Historic District |
| Cantol Wax Company Building |
| Carmichael, Otto, House |
| Carnahan, Magnus J., House |
| Carnegie Hall of Moores Hill College |
| Carnegie Library of Covington |
| Carnegie Public Library |
| Carpenter, Willard, House |
| Carr High School |
| Carroll County Courthouse |
| Carroll County Infirmary |
| Carrollton Bridge |
| Carr's Hall |
| Cataract Covered Bridge |
| Cathcart |
| Cathedral of St. James and Parish Hall |
| Cathedral of the Immaculate Conception |
| Catherine Street Historic District |
| Catlin Bridge |
| Cavanaugh Bridge |
| CCC Recreation Building-Nature Museum |
Data from United States Park Service and Wikidata
