| Countries of Europe by Population | 0 | - | 4.98 | 177,948 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,164 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,857 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,980 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,346 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,667 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,800 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,164 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,358 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,540 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,259 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,934 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,248 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,229 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,572 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,538 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,773 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,172 |
| Europe Capital to Country | 0 | - | 4.99 | 247,484 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,402 |
| European Capitals by Map | 0 | - | 4.99 | 136,159 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,149 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,578 |
| European Coastal Capitals | 0 | - | 4.95 | 89,715 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,689 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,295 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,745 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,929 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,800 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,959 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,810 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,972 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,903 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,562 |
| Official Cities in the UK | 0 | - | 4.89 | 280,420 |
| Cities in European History #1 | 0 | - | 4.63 | 133,070 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,383 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,081 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,683 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,745 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,317 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,429 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,404 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,749 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,160 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,275 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,845 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,790 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,647 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,739 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,202 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,559 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,912 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,521 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,179 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,997 |
| Random European Capital to Country | 0 | - | 4.98 | 189,150 |
| Random European Country to Capital | 0 | - | 4.92 | 147,398 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,557 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,495 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,361 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,302 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,038 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,639 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,848 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,800 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,184 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,495 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,443 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 74,579 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,017 |
| Countries with Megacities | 0 | - | 4.99 | 246,578 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,948 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,817 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,386 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,763 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,001 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,492 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,407 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,760 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,212 |
| Biggest Cities in France | 0 | - | 4.69 | 221,970 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,769 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,633 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,703 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,942 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,379 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,967 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,600 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,353 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,483 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,501 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,592 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,086 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,784 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,839 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,830 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,447 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,552 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,213 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,606 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,600 |
| Biggest Cities in History | 0 | - | 4.52 | 89,098 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,109 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,794 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,805 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,924 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,452 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,487 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,051 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,536 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,024 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,133 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,720 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,643 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,487 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,184 |
| Name a City - European Countries | 0 | - | 4.92 | 64,348 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,292 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,709 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,348 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,117 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,118 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,273 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,871 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,363 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,545 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,260 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,378 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,807 |
| Largest City by Island | 0 | - | 4.87 | 71,009 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,506 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,257 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,585 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,552 |
| Megacities on a World Map | 0 | - | 4.98 | 250,834 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,773 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,835 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,095 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,473 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,883 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,653 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,277 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,794 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,115 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,410 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,318 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,757 |
| Former Capitals | 0 | - | 4.88 | 71,129 |
| Asia Capital to Country | 0 | - | 4.96 | 125,711 |
| African Capitals by Map | 0 | - | 4.99 | 132,114 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,095 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,767 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,633 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,080 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,146 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,172 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,656 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,407 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,415 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,794 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,678 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,673 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,307 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,077 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,046 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,216 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,035 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,062 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,650 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,719 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,933 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,083 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,914 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,212 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,522 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,104 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,539 |
| British Places A-Z | 0 | - | 4.29 | 79,592 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,809 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,319 |
| European Cities with the Biggest Economies | 0 | - | 4.62 | 38,173 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,615 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,299 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,713 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,377 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,146 |
| Word Scramble - European Capitals | 0 | - | 4.72 | 93,751 |
| Boroughs of London | 0 | - | 4.63 | 87,014 |
| London Geography | 0 | - | 4.47 | 59,449 |
| UK Immigration by Country | 0 | - | 4.94 | 139,566 |
| Biggest British Empire Countries | 0 | - | 4.73 | 88,207 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,866 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,197 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,718 |
| Countries of the German Empire | 0 | - | 4.51 | 37,649 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,084 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,112 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,210 |
| Capitals of the Stans | 0 | - | 4.95 | 26,397 |
