| Taken | Quiz |
|---|
| 364,637 | Countries with the Longest Coastlines |
| 122,508 | Draw All Country Borders and Borderless Countries |
| 120,196 | Top 10 European Countries by Coastline |
| 112,291 | Seas on the World Map |
| 109,285 | Seas of the World |
| 101,619 | World's Longest Rivers |
| 97,940 | Five Countries with the Longest Coastline by Continent |
| 96,987 | Countries That Touch the Baltic Sea |
| 85,179 | Famous Rivers |
| 84,454 | Seas that Touch the Most Countries |
| 83,896 | Top 10 Asian Countries by Coastline |
| 79,121 | Biggest Lakes in the World |
| 75,532 | Seas of Europe |
| 75,493 | North Sea Countries |
| 74,341 | Natural Features of Countries #1 |
| 73,801 | Countries with Fjords |
| 71,925 | Landforms Quiz |
| 71,010 | World's Longest Rivers on a Map |
| 70,102 | Name a Valid Country Bordering Each Sea |
| 69,107 | U.S. Cities with Landforms in The Name |
| 68,480 | American Countries With No Atlantic Coastline |
| 68,372 | Top 10 American Countries by Coastline |
| 67,053 | Bay of Bengal Countries With an Empty Map |
| 65,008 | Countries With No Rivers |
| 62,537 | 100 Rivers on a World Map |
| 62,431 | Trace the Coast of Europe with a Map |
| 62,245 | Countries That Touch the Adriatic Sea |
| 58,236 | Countries That Touch the Red Sea |
| 56,572 | Bodies of Water by Satellite Image #1 |
| 55,507 | Caspian Sea Countries |
| 54,550 | Black Sea Countries |
| 53,469 | Countries Closest to the Aegean Sea |
| 53,470 | African Great Lake Countries with an Empty Map |
| 52,914 | Countries Farthest From the Sea |
| 51,811 | Countries with the Shortest Coastlines |
| 51,074 | South China Sea Countries |
| 50,696 | 100 Longest Rivers in Europe - with a Map |
| 50,670 | Capital Cities by Body of Water |
| 50,211 | Landforms by Country Quiz |
| 49,555 | Tectonic Plates Map Quiz |
| 49,480 | Biggest City by River |
| 47,941 | Trace the Coast of Afro-Eurasia with a Map |
| 46,789 | Movies with Landforms in the Name |
| 46,627 | Mississippi River States Empty Map Quiz |
| 46,228 | Top 10 U.S. States with the Longest Coastline |
| 44,669 | Mekong River Countries Empty Map Quiz |
| 44,175 | Rivers of The United States Quiz |
| 43,964 | Top 10 African Countries by Coastline |
| 43,481 | African Great Lakes |
| 42,954 | Rivers of Europe Quiz |
| 42,865 | Great Lakes Quiz |
| 42,783 | Trace the Coast of the Americas with a Map |
| 42,280 | Trace the Coast of the World Map |
| 41,614 | Nile River Basin Countries on a Map |
| 38,414 | Cities on a Map of the Great Lakes |
| 38,066 | Layers of the Earth and Atmosphere |
| 37,687 | Rivers and Lakes whose Names are Countries |
| 37,541 | Geological Extremes Quiz |
| 35,978 | Most Populous River Basins |
| 35,436 | Rivers that Flow through the Most Countries |
| 33,884 | Major U.S. Rivers with State Names |
| 33,085 | Amazon... or Nile? |
| 33,054 | Natural Features of Countries #2 |
| 32,644 | 10 Longest Rivers in the United States |
| 32,131 | Asian Physical Geography |
| 32,061 | Bodies of Water around the Arabian Peninsula |
| 31,433 | Capitals by River |
| 30,710 | European Physical Geography |
| 30,268 | Rivers A-Z |
| 29,618 | Draw the Coast of the Mediterranean on the Map |
| 28,581 | African Physical Geography |
| 28,540 | Name a Valid Country for Each River |
| 28,081 | Tectonic Plates on a Map |
| 26,994 | States and Provinces that Touch the Great Lakes |
| 26,020 | Answers Contain Sea |
| 25,913 | U.S. States by Landform Quiz |
| 25,577 | UK Rivers Map Quiz |
| 25,132 | Bodies of Water by Cities |
| 25,088 | Landforms by Description Quiz |
| 25,016 | Bodies of Water on the World Map |
| 24,693 | Gulfs and Bays on the World Map |
| 24,005 | City to River #1 |
| 23,772 | Cities on the Mediterranean Sea by a Clue |
| 23,266 | Trace the Coast and International Borders of the USA |
| 21,861 | Famous Lakes Quiz |
| 21,344 | Rivers on Borders |
| 21,245 | Rivers by City Quiz |
| 20,412 | The Five Oceans Map Quiz |
| 20,405 | Rivers in History |
| 20,140 | Indian Ocean General Knowledge |
| 19,893 | Countries with the Most Lakes Over 100 Km² |
| 19,688 | Largest Lakes in the United States on a Map |
| 18,969 | Texas Rivers Map Quiz |
| 18,883 | Atlantic Ocean General Knowledge |
| 18,430 | U.S. State Capitals Closest to the Great Lakes |
| 17,029 | Bodies of Water by Satellite Image #2 |
| 16,449 | Name the Sea from a Clue |
| 16,244 | South American Physical Geography |
| 15,668 | U.S. State Capitals Closest to the Mississippi River |
| 15,478 | U.S. States Bordering the Great Lakes |
| 14,149 | Largest Rivers by Discharge |
| 13,543 | Countries by Coastline Per Capita |
| 13,369 | Human Biology Multiple Choice Quiz #2 |
| 13,323 | City to River #2 - Difficult |
| 13,072 | Lakes in the United States Quiz |
| 12,469 | Longest Rivers in the UK |
| 11,317 | Oceania Physical Geography |
| 8,386 | Geologic Time Scale |
| 8,059 | Human Biology Multiple Choice Quiz #1 |
| 7,406 | 50 Rivers on a World Map |
| 5,783 | Countries with the Longest Coastline Bordering Each Other |
| 5,457 | Seas of the World - Map Quiz |
| 5,320 | 100 Longest Rivers in North America - with a Map |
| 5,050 | Great Lakes - Map Quiz |
| 5,009 | Straits on the World Map |
| 4,314 | 25 Largest Bodies of Water |
| 4,207 | Five Countries with the Shortest Coastline by Continent |
| 4,091 | Ultimate Rivers of the UK (with map) |
| 3,934 | Baltic Sea Countries with an Empty Map |
| 3,835 | Countries Bordering the Four Color Seas |
| 3,679 | European Bodies of Water (with Map!) |
| 3,631 | Oregon Rivers - Map Quiz |
| 3,592 | US States along the coastline and border |
| 3,589 | Major Rivers of the World - Source US Dept of Commerce, NOAA |
| 3,511 | Largest River Basins by Area on a Map |
| 3,430 | Trace the coast of the world (Hard(no map)) |
| 3,386 | Trace the Coast of Europe by Guessing the Biggest Cities |
| 3,084 | Countries Closest to the Red Sea |
| 2,838 | German Rivers on a Map |
| 2,823 | Terrestrial Biomes - Map Quiz |
| 2,703 | Countries with a Longer Coastline than Their Neighbors |
| 2,624 | World's Longest Rivers |
| 2,580 | 50 Longest Rivers in the World |
| 2,507 | Peninsulas A-Z |
| 2,411 | Biggest countries with the smallest coastline |
| 2,282 | River Deltas on the Map |
| 2,182 | 100 Biggest Natural Lakes in Europe with a Map |
| 2,130 | Five Longest Rivers by Continent |
| 2,073 | 100 Longest Rivers in South America - with a Map |
| 2,047 | Longest U.S. Rivers on a Map - Easy |
| 2,043 | UK Cities, Towns & their Rivers (with map) |
| 2,017 | World's Dirtiest Rivers |
| 2,018 | Flags of Countries That Border the North Sea |
| 2,010 | Countries that Touch the Most Seas |
| 1,996 | Longest rivers in Poland |
| 1,970 | Landlocked Countries Whose Only Borders are with Countries With Coastlines |
| 1,968 | Rivers in the Map of Europe |
| 1,946 | 100 Longest Rivers in Africa - with a Map |
| 1,927 | Longest Rivers in Countries |
| 1,925 | Largest Deserts |
| 1,906 | Biology General Knowledge |
| 1,894 | Name a Valid Country on Each River |
| 1,835 | Rivers of Great Britain |
| 1,783 | Countries Bordering the Aegean Sea - Map Quiz |
| 1,744 | Countries with shortest coastline |
| 1,738 | 100 Longest Rivers in Asia - with a Map |
| 1,727 | Seas on the Map of Europe |
| 1,699 | Famous Lakes on a World Map |
| 1,691 | Danube River Basin Countries on a Map |
| 1,682 | Sequential US Rivers and Cities |
| 1,668 | Rivers by Country |
| 1,636 | Countries with the longest Total Borders and Coastline |
| 1,619 | 50 Largest Lakes in the World Quiz |
| 1,606 | Geologic Eons, Eras and Periods |
| 1,603 | Name a Valid River |
| 1,525 | Countries with Longest Maximum Distances to the Ocean |
| 1,506 | Countries with multiple coastlines |
| 1,466 | Countries with the Most Volcanoes |
| 1,441 | World Rivers Map Quiz |
| 1,433 | Countries Bordering the Indian Ocean Empty Map Quiz |
| 1,418 | 100 Longest Rivers in the World - with a Map |
| 1,376 | Rivers of Russia |
| 1,357 | Mainland Countries with the Shortest Coastlines |
| 1,253 | Countries with Highest Coast-to-Land Border Ratio |
| 1,249 | Groups of Countries By Bordering Sea #1 |
| 1,245 | Three Real and One Fake - Friends |
| 1,244 | All Mediterranean seas |
| 1,240 | Countries with the most long rivers |
| 1,238 | Seas of the World |
| 1,226 | Countries with less than 100km of Coastline |
| 1,221 | Top landforms by starting letter: Mountains, Rivers, Lakes, Islands |
| 1,199 | Mississippi Basin Rivers on a Map - Extreme |
| 1,173 | Biggest World Cities on Lakes |
| 1,162 | Sequential Cities in the Nile River Basin |
| 1,149 | Multiple Capitals on Rivers |
| 1,142 | Small Countries with the Most Coastline - with Exceptions |
| 1,079 | Countries without coastline |
| 1,064 | Countries by River |
| 1,056 | Cross the River |
| 1,055 | Mississippi-Missouri Basin States and Provinces |
| 1,049 | Croatian rivers |
| 1,045 | Biggest rivers in the world by drainage basins area |
| 1,034 | Longest Rivers in the US |
| 1,015 | 40 Lakes on the World Map |
| 1,010 | Baltic Sea General Knowledge |
| 1,001 | Countries named after rivers |
| 960 | 100 Longest Rivers in Oceania - with a Map |
| 949 | Countries that Block Other Countries from Water |
| 942 | Cities in the Colorado River Basin on a Map |
