Oklahoma - Area of significance: Architecture
| 66 Motel |
| Abe Lincoln Trading Company |
| Acre Family Barn |
| Adair County Courthouse |
| Adams, John and Hazel, House |
| Adams Woodframe Grain Elevator |
| Ada Public Library |
| Administration Building |
| Albion State Bank |
| Alcorn-Pickrel House |
| Aldridge Hotel |
| Aldridge Hotel |
| Alfalfa County Courthouse |
| Alston-Bedwell House |
| Alva Armory |
| Ambassador Hotel |
| American Baptist Home Mission House |
| American Legion Hut |
| American Legion Hut |
| Anadarko Armory |
| Anadarko Downtown Historic District |
| Antioch Dependent School District #15 |
| Arcadia Round Barn |
| Ardmore Historic Commercial District |
| Ardmore Municipal Auditorium |
| Arkansas Valley National Bank |
| Arkoma School |
| Arrastra Site |
| Ash Creek School |
| Atlas Life Building |
| Atoka Armory |
| Aupperle, Bennie L., Dairy Barn |
| Automobile Alley Historic District |
| Avant's Cities Service Station |
| Avery Building |
| Babe's Package Store |
| Bacone College Historic District |
| Baggs, James Martin, Log Barn |
| Baker, Elmer, Barn |
| Baker, W. C., House |
| Baker Woodframe Elevator |
| Baker Woodframe Grain Elevator |
| Balloon Hanger at Henry Post Army Airfield |
| Bank of Bigheart |
| Bank of Burbank |
| Bank of Hominy |
| Bank of Hunter |
| Bank of Nashville |
| Barnard Elementary School |
| Barnes-Steverson House |
| Bartlesville Downtown Historic District |
| Bassett House, The |
| Beal, Mattie, House |
| Beard Cabin |
| Beard Motor Company |
| Beckham County Courthouse |
| Beck, I.W.W., Building |
| Bell Street Historic District |
| Belvidere, The |
| Benedictine Heights Hospital |
| Berryhill Building |
| Berry, James E., House |
| Berry, Luke D., House |
| Beta Theta Pi Fraternity House, The University of Oklahoma |
| Beth Israel Temple |
| Billington Building |
| Billy, Isaac, Homestead and Family Cemetery |
| Blackburn Methodist Church |
| Blackwell Armory |
| Blaine County Courthouse |
| Blaine Stadium and Fieldhouse |
| Blue Cross Blue Shield of Oklahoma Building |
| Bon Ton House |
| Boston Avenue Methodist Episcopal Church |
| Boulder Cabin |
| Bounds, James H., Barn |
| Bowers School |
| Bradford, William L., Building |
| Brady Cabin |
| Brady Heights Historic District |
| Braniff Building |
| Branson Building |
| Briggs, Eugene S., Auditorium |
| Bristow Firestone Service Station |
| Bristow Presbyterian Church |
| Bristow Tire Shop |
| Brittain-Garvin House |
| Broadway Tower |
| Brown, Jackson, House |
| Bryan County Courthouse |
| Buena Vista Park Historic District |
| Buffalo City Park Pavilion |
| Buffalo Lodge |
| Building 309, Fort Sill Indian School |
| Building at 405-407 College Avenue |
| Building at 500 Flynn Street |
| Burrus Mills Elevator C |
| Busby Office Building |
| Busby Theatre |
| Buttram, Frank and Merle, House and Grounds |
Data from United States Park Service and Wikidata
