| 100% | VICTORIAFALLS | 13 | Landmark on the border between Zambia and Zimbabwe |
| 54% | GUADIANA | 8 | River on the border between Spain and Portugal |
| 54% | MATTERHORN | 10 | Mountain on the border between Italy and Switzerland |
| 54% | ELIAS | 5 | Mount Saint ___ (peak on the border between the Yukon and Alaska) |
| 54% | DETROIT | 7 | Largest city on the border between the U.S. and Canada |
| 54% | DEAD | 4 | Lake on the border between Israel and Jordan, ___ Sea |
| 53% | NEWRY | 5 | City in Northern Ireland on the border between County Down and County Armagh |
| 52% | LIMPOPO | 7 | River forming the border between Zimbabwe and South Africa |
| 52% | ZAMBIA | 6 | Victoria Falls is on the border of Zimbabwe and __ |
| 52% | TITICACA | 8 | Andean lake on the border between Peru and Bolivia |
| 52% | TAHOE | 5 | Resort lake on the border between California and Nevada |
| 51% | LIMPOPO | 7 | River that serves as the border between Zimbabwe and South Africa |
| 51% | DOURO | 5 | River on the border between Spain and Portugal before flowing west to the Atlantic |
| 46% | VICTORIA | 8 | Famous waterfall on the Zimbabwe-Zambia border |
| 44% | KARIBA | 6 | Dam on the Zambezi shared by Zambia and Zimbabwe |
| 42% | ERIE | 4 | Lake on the border of the US and Canada |
| 42% | ZAMBEZI | 7 | River that is bordered by Zambia and Zimbabwe |
| 42% | ARCH | 4 | Type of structure dedicated to peace and built on the border between Blaine and Surrey |
| 41% | BEAT | 4 | Patrol found on the borders of 17-, 34-, 43- and 64-Across |
| 40% | ESS | 3 | Shape of the border between yin and yang |
| 40% | KASHMIR | 7 | Region on the border of India and Pakistan |
| 40% | IGUAZU | 6 | Waterfalls on the border of Argentina and Brazil |
| 40% | TITICACA | 8 | Lake on the border of Bolivia and Peru |
| 40% | TAHOE | 5 | Lake on the border of California and Nevada |
| 40% | CAUCASUS | 8 | Mountain range, the border between Europe and Asia |
| 40% | YALU | 4 | River that forms a large part of the border between North Korea and China |
| 39% | COATES | 6 | Last name on the cover of Between the World and Me |
| 39% | SEXTANS | 7 | Faint constellation lying on the celestial equator between Leo and Hydra |
| 39% | UPNEY | 5 | London Underground station on the District Line between Barking and Becontree |
| 39% | MORAVA | 6 | River that forms the border between Slovakia and Austria |