| City 1 | Border | City 2 | % Correct |
|---|---|---|---|
| 12) Vatican City | City border | Rome | 100%
|
| 2) Juarez, MX | Rio Grande River | El Paso | 67%
|
| 1) Copenhagen, DE | Oresund Bridge | Malmo | 67%
|
| 6) Tijuana, MX | Mex-US | San Diego | 67%
|
| 5) Marin Co, CA | Golden Gate Bridge | San Francisco | 50%
|
| 4) Detroit, MI | Ambassador Bridge | Windsor | 50%
|
| 3) Kinshasa, DRC | Congo River | Brazzaville | 33%
|
| 8) Matamoros, MX | Rio Grande | Brownsville | 17%
|
| 20) Fort Erie, Canada | US-Canada | Buffalo | 17%
|
| 10) Como, Italy | Italy-Swtz | Chiasso | 17%
|
| 11) Slubice, Poland | Oder River | Frankfurt | 17%
|
| 16) Calexico, CA | US-Mexico | Mexicali | 17%
|
| 17) Laughlin, NV | Colorado River | Bullhead City | 0%
|
| 9) Kreuzlingen, Swtz | Lake Constane | Konzstanz | 0%
|
| 15) Edmundston, NB | Canada-US | Madawaska | 0%
|
| 14) Fargo, ND | Red River | Moorhead | 0%
|
| 18) Greenwich, CT | NY-CT Line | Port Chester | 0%
|
| 7) McAllen, TX | Rio Grande | Reynosa | 0%
|
| 19) Kehl, Germany | Rhine River | Strasbourg | 0%
|
| 13) Blaine, WA | Canada-US | Surrey | 0%
|