| Battle to Country | 0 | - | 4.91 | 53,038 |
| Countries in World War I | 0 | - | 4.88 | 227,651 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,508 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,488 |
| Europe Map Quiz | 0 | - | 5.00 | 4,750,380 |
| Independence from Whom | 0 | - | 4.99 | 211,058 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,512 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,294 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,774 |
| World Map Quiz | 0 | - | 4.81 | 64,299 |
| Countries by Founding Story | 0 | - | 4.95 | 76,965 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,445,204 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,440 |
| Africa Map Quiz | 0 | - | 5.00 | 2,112,683 |
| Asia Map Quiz | 0 | - | 4.99 | 912,526 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,518 |
| WWII Geography | 0 | - | 4.81 | 120,015 |
| Countries in World War II | 0 | - | 4.54 | 909,618 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,289 |
| Cities by Former Name | 0 | - | 4.84 | 91,343 |
| Recently Independent Countries | 0 | - | 4.98 | 158,542 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,341 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,422 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,100 |
| Countries by Former Name | 0 | - | 4.99 | 124,797 |
| Historical City to Country | 0 | - | 4.84 | 78,376 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,053 |
| United States Map Quiz | 0 | - | 4.98 | 4,150,531 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,343 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,399 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,497 |
| Australia Map Quiz | 0 | - | 4.95 | 343,546 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,627 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,192 |
| Important Cities in WWII | 0 | - | 4.42 | 93,282 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,180 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,534 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,419 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,706 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,331 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,990 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,211 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 52,943 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,490 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,988 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,083 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,871 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,602 |
| North America Map Quiz | 0 | - | 4.98 | 247,150 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,780 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,980 |
| Former Flags | 0 | - | 4.97 | 107,330 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,743 |
| The American Civil War | 0 | - | 4.62 | 52,333 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,459 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,758 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,971 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,857 |
| Orthodox Countries | 0 | - | 4.92 | 131,106 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,531 |
| Monarchies of Europe | 0 | - | 4.90 | 97,802 |
| Monarchies of Asia | 0 | - | 4.97 | 70,896 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,538 |
| Communist Countries in History | 0 | - | 4.63 | 494,420 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,716 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 134,990 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,293 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,971 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,366 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,863 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,199 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,717 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 145,036 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,568 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,702 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,989 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,121 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,595 |
| Ancient City to Country | 0 | - | 4.70 | 107,861 |
| City-States | 0 | - | 4.53 | 37,202 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,601 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,060 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,354 |
| Countries by Independence Day | 0 | - | 4.61 | 52,697 |
| Former Countries by Capital | 0 | - | 4.45 | 127,302 |
| Former Countries | 0 | - | 4.75 | 133,059 |
| Political Movements by Country | 0 | - | 4.46 | 72,422 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,863 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,195 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,381 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,508 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,932 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,204 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,300 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,086 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,981 |
| National Founders | 0 | - | 4.40 | 83,767 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,322 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,890 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 120,475 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,588 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,733 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,622 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,747 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,812 |
| Provinces of China Map Quiz | 0 | - | 4.91 | 93,311 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,201 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,961 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,755 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,302 |
| States of India Map Quiz | 0 | - | 4.83 | 26,298 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,329 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,215 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,752 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,562 |
| China Cities Map Quiz | 0 | - | 4.93 | 104,790 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,671 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,476 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,048 |
| Name the English Monarchs | 0 | - | 4.91 | 500,785 |
| Boundary Waters | 0 | - | 4.92 | 88,319 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,033 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,769 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,984 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,241 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,160 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,099 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,402 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,661 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,241,715 |
| Landlocked Countries | 0 | - | 4.99 | 417,588 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,627 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 564,708 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,011 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,680 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,646 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,979 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,518 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,040 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 37,784 |
| Roman Provinces on a Map | 0 | - | 4.54 | 36,802 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,320 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,442 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,482 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,468 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,702 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,079 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,612 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,066 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,527 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,256 |
| World Capitals Quiz | 0 | - | 5.00 | 5,056,569 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,364 |
| Himalayan Countries | 0 | - | 4.94 | 136,882 |
| Andean Countries | 0 | - | 4.95 | 83,660 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,924 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,249 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,590 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,173 |
| Danube Countries | 0 | - | 4.97 | 71,519 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,356 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,938 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,383 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,444 |
| European Landlocked Countries | 0 | - | 4.99 | 146,277 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,947 |
| Countries with the Most Species | 0 | - | 4.99 | 102,597 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,755 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,065 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,374 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,547 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,224 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,882 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,265 |
| Countries in the Alps | 0 | - | 4.86 | 117,486 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,000 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,110 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,334 |
| Guerrillas by Country | 0 | - | 4.40 | 41,053 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,841 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,942 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,357 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,117 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,077 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,882 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,159 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,424 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,417 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,265 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,578 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,824 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,091 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,101 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,933 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,969 |
| Countries with the Most Cathedrals | 0 | - | 4.51 | 44,781 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,493 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,358 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,637 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,878 |
