All - Constructed - 1930–1939
| Avant's Cities Service Station |
| Aztec Auto Court |
| Babb-Piegan, Montana, Inspection Station |
| Baca-Korte House |
| Backus-Marblemount Ranger Station House No. 1009 |
| Backus-Marblemount Ranger Station House No. 1010 |
| Baileys Harbor Town Hall-McArdle Library |
| Baker Highway Maintenance Station |
| Baldwin, Henry Perrine, High School |
| Ball, Howard, House |
| Ball Theatre |
| Balsam Lake Mountain Fire Observation Station |
| Bama Theatre-City Hall Building |
| B and B Chemical Company |
| Banneker Recreation Center |
| Barfoot Lookout Complex |
| Barnard Mortuary |
| Bartenbach, H. J., House |
| Barton, Pauline Cheek, House |
| Bartram, John, High School |
| Baruh-Zell House |
| Base Administration Building |
| Bassett, O. T., Tower |
| Bastrop State Park |
| Bates, John M. and Elizabeth, House No. 1 |
| Baxter Springs Independent Oil and Gas Service Station |
| Bay County Building |
| Beam's Shell Service Station and Office, (Former) |
| Bear River High School Science Building |
| Beaver Pass Shelter |
| Beebe Jail |
| Belen City Hall |
| Belleville High School |
| Bellingrath Gardens and Home |
| Bellows Falls Times Building |
| Belvidere Cafe, Motel and Gas Station |
| Belview School |
| Bend Skyliners Lodge |
| Benicia Capitol State Historic Park |
| Benson Elementary School |
| Bergland Administrative Site |
| BERKSHIRE NO. 7 |
| Berry House |
| Berry Motor Car Service Building |
| Berwyn Health Center |
| Best, Allie M., House |
| Best Oil and Refining Company Service Station |
| Bethesda Theatre |
| Beth Israel Synagogue |
| Bethlehem Armory |
| Big Duck, The |
| Bigelow Apartments |
| Bigfork Village Hall |
| Big Moose Community Chapel |
| Big Sandy Lodge |
| Big Springs Lookout Tower |
| Bingham School |
| Birdwood |
| Black Hawk Museum and Lodge |
| Black Mountain College Historic District |
| Blackstone Building |
| Blackwell Armory |
| Bland, Joseph Franklin, House |
| Blood Mountain Trail Shelter |
| Bloom's Arcade |
| Bloxham, Carl L., Building |
| Boca Dam |
| Bogalusa Coca Cola Bottling Plant |
| Boles, Charles, House |
| Bollinger-Hartley House |
| Bo Lynn's Grocery |
| Bordelonville Floodgate |
| Bossier High School |
| Boulder City Historic District |
| Boulder Dam Hotel |
| Boulder Dam Park Museum |
| Boulder Point Lookout |
| Boulevard Diner |
| Bowman, A. Smith, Distillery |
| Bowman Lake Patrol Cabin |
| Box Hall Plantation |
| Boy Scout Building |
| Brady-Brady House |
| Brandon Auditorium and Fire Hall |
| Branigan, Thomas, Memorial Library |
| Bransford Spring Pumphouse |
| Bremer County Court House |
| Brevard College Stone Fence and Gate |
| Bridge Creek Shelter |
| Bridgeforth High School |
| Bridge No. 3355-Kathio Township |
| Bridge No. 560 |
| Bridge No. 5827-Zumbro Falls |
| Bridge over Arkansas River |
| Bridge over Burro Canon |
| Bridgeport Hill Service Station |
| Bridge Street Bridge |
| Bristol Girls' Club |
| Bristol Municipal Stadium |
| Broadway Bridge |
Data from United States Park Service and Wikidata
