| Costello, Paul - |
| Bolivia’s Salt Flats: Salar de Uyuni (17) | | Multiple Choice | 2013.08.09 |
| Chile’s Atacama Desert: The Driest Place on Earth (9) | | Multiple Choice | 2013.09.20 |
| The Amazon Rainforest (8) | | Multiple Choice | 2013.12.24 |
| The American Indian Movement (20) | | Multiple Choice | 2013.01.12 |
| The Apache Tribe (26) | | Multiple Choice | 2013.06.17 |
| The Arapaho Tribe (9) | | Multiple Choice | 2013.08.04 |
| The Arctic Indians (20) | | Multiple Choice | 2013.10.11 |
| The Blackfoot Confederacy (21) | | Multiple Choice | 2013.07.16 |
| The Chickasaw Nation (67) | | Multiple Choice | 2013.05.06 |
| The Coast Salish People (8) | | Multiple Choice | 2013.05.01 |
| The Cold War in South America (39) | | Multiple Choice | 2013.07.11 |
| The Comanche Nation (16) | | Multiple Choice | 2013.02.07 |
| The Falklands War: South America in Conflict (18) | | Multiple Choice | 2013.08.26 |
| The Great Basin People (16) | | Multiple Choice | 2013.04.06 |
| The Guarani Language (29) | | Multiple Choice | 2013.10.06 |
| The History of Sugar Plantations in South America (9) | | Multiple Choice | 2013.12.12 |
| The History of the Lakota Sioux Nation (19) | | Multiple Choice | 2013.04.14 |
| The Iguazu Falls (34) | | Multiple Choice | 2013.05.27 |
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