| Countries of the World in 1789 with a Map | 66,924 | 0 | - |
| States of the Holy Roman Empire in 962 with a Map | 6,958 | - | - |
| Countries of Europe in 1810 with a Map | 21,235 | - | - |
| Countries of Iberia in 1035 with a Map | 3,732 | - | - |
| Countries by First and Last Two Letters | 1,818,618 | 0 | - |
| Great Lakes Quiz | 50,518 | 0 | - |
| Rivers of the United States | 66,404 | 0 | - |
| 250 World Cities Everyone Should Know | 7,984 | - | - |
| 100 Biggest Cities in Europe in 1900 with a Map | 9,589 | - | - |
| Countries, U.S. States, and Capitals by First Two Letters | 488,768 | 0 | - |
| United States Map Quiz | 4,164,882 | 0 | - |
| U.S. State Capitals Map Quiz | 145,003 | 0 | - |
| Countries of North and South America (with a map) | 63,242 | - | - |
| English Royal Consorts | 37,442 | 0 | - |
| Name the Popes Quiz | 138,550 | 0 | - |
| Popular Royal Names | 125,135 | 0 | - |
| US States and State Capitals | 163,814 | 0 | - |
| Name a Valid Year in History | 67,565 | 0 | - |
| All 3,143 Counties of the United States on a Map | 333,655 | 0 | - |
| Countries Containing Each Letter A-Z | 153,977 | 0 | - |
| All 425 Counties of the United States in 1800 on a Map | 1,164 | - | - |
| Counties of England Map Quiz | 308,354 | 0 | - |
| States of Germany Map Quiz | 133,327 | 0 | - |
| Anglo-Saxon Kingdoms of England | 25,793 | 0 | - |
| Anglo-Saxon Kingdoms of England Map | 1,618 | - | - |
| Olympian Gods Quiz | 502,258 | 0 | - |
| Neutral European Countries of WWII | 161,880 | 0 | - |
| Figures from Greek Mythology | 187,963 | 0 | - |
| Countries Closest to Germany A-Z | 27,421 | 0 | - |
| Five Biggest Cities by Country | 166,946 | 0 | - |
| Save Humanity by Guessing Countries | 579,806 | 0 | - |
| Biggest City in Each U.S. State | 168,844 | 0 | - |
| Name Every Beatles Song | 237,334 | 0 | - |
| Countries of Europe in 1815 With a Map | 150,867 | 0 | - |
