| Clue | Answer | % Correct |
|---|---|---|
| Highest point above sea level, accessible with help from Sherpas | Mount Everest | 100%
|
| Lake far below sea level and famous for its high salinity | Dead Sea | 90%
|
| Highest mountain in the Alps | Mont Blanc | 85%
|
| Waterfall near the Zambia town of Livingstone | Victoria Falls | 85%
|
| River delta shared with Romania, Ukraine, and almost Moldova | Danube | 80%
|
| Densely forested area that effectively cuts the Americas in half | {Darién} Gap | 70%
|
| Square in front of the world's largest basilica | St. Peter's Square | 70%
|
| Particle physics lab complex near Geneva (acronym) | CERN | 60%
|
| Most famous of the three Niagara Falls | Horseshoe Falls | 60%
|
| Waterfall that contains "z" or "ç" depending on the language | Iguazu Falls | 60%
|
| Heavily guarded buffer zone created roughly around the 38th parallel | DMZ | 50%
|
| Lake also known as Bodensee in German | Lake Constance | 45%
|
| Origin of North Dakota's state nickname | International Peace Garden | 20%
|
| Coastal mangrove forest known for Bengal tigers | Sundarbans | 20%
|
| Tepui mountain that inspired the scenery for the Pixar movie "Up" | Mount Roraima | 15%
|
| Canyon on the Rio Grande, part of Big Bend National Park | Santa {Elena} | 10%
|
| Belgian town enclaved within the Dutch town of Baarle-Nassau | Baarle-{Hertog} | 5%
|
| Library that formerly had unrestricted access from both countries | {Haskell} Free Library | 5%
|
| Lake within Paektu Mountain considered holy to Koreans | Heaven Lake | 5%
|
| Massive hydroelectric dam located near the above | {Itaipu} Dam | 5%
|