| 25 Größte Städte der UdSSR | 3,858 | 0 | - |
| Cities by Former Name | 91,653 | 0 | - |
| Which City In the United Kingdom? | 94,367 | 0 | - |
| City Superlatives #1 | 19,685 | 0 | - |
| Five Biggest Cities by Country - Extreme | 41,700 | 0 | - |
| Flags to Largest Cities | 51,478 | 0 | - |
| Cities by Former Name - Beyond Thunderdome | 33,192 | 0 | - |
| Fünf größte Städte pro Land | 14,182 | 0 | - |
| Five Most Guessed Cities by Continent | 112,897 | 0 | - |
| Größte Städte Deutschlands - Extrem | 91,080 | 0 | - |
| All 1M Cities by Proximity | 578,983 | 0 | - |
| Europäische Städte nach Bild #2 | 10,434 | 0 | - |
| Northernmost Major City by Country | 33,215 | 0 | - |
| Second Biggest Cities by Country | 59,686 | 0 | - |
| Weltstädte Quiz | 34,135 | 0 | - |
| Weltstädte mit Hinweisen #3 | 15,607 | 0 | - |
| Biggest Cities That Aren't World Capitals | 134,498 | 0 | - |
| Countries with Megacities | 264,234 | 0 | - |
| Größte Städte der Welt nach Buchstabe - A | 19,613 | 0 | - |
| Weltstädte mit Hinweisen Quiz | 14,129 | 0 | - |
| City to Country Quiz #2 | 108,460 | 0 | - |
| European Cities by Wikipedia Descriptions | 54,791 | 0 | - |
| Lonely Planet Top 200 Cities | 221,063 | 0 | - |
| Cities with the Most Foreign Embassies | 47,166 | 0 | - |
| Cities in European History #2 | 3,951 | 0 | - |
| Größte Städte nach Merkmal #1 | 3,346 | 0 | - |
| Cities By Wikipedia Word Clouds A-Z | 33,149 | 0 | - |
| 5 Largest Cities for Every Letter on Map | 51,539 | 0 | - |
| Städte, die mit B beginnen auf einer Weltkarte | 21,745 | 0 | - |
| City to Country Quiz #5 | 81,082 | 0 | - |
| Biggest Cities by Trait #2 | 20,682 | 0 | - |
| Cities that End in D by Clue | 26,977 | 0 | - |
| Städte nach ehemaligem Namen | 12,276 | 0 | - |
| Largest World Cities With Four Letters | 64,011 | 0 | - |
| Cities Beginning With N on a Map | 60,883 | 0 | - |
| Name a City in EVERY Country - No Capitals | 67,365 | 0 | - |
| European Cities A-Z by Clue #1 | 79,030 | 0 | - |
