| Rank | Population | Country | Hint | City | % Correct |
|---|---|---|---|---|---|
| 1 | 688,000 | Croatia | The only capital which starts with this letter | Zagreb | 100%
|
| 2 | 661,000 | Spain | Basilica of Our Lady of the Pillar | Zaragoza | 91%
|
| 11 | 71,000 | Croatia | Oldest Croatian city, Monument to the Sun | Zadar | 40%
|
| 6 | 126,000 | Netherlands | Capital of Overijssel, Sassenpoort | Zwolle | 36%
|
| 4 | 154,000 | Netherlands | River Zaan | Zaanstad | 34%
|
| 8 | 91,000 | Germany | Erzgebirge, city of automobiles | Zwickau | 30%
|
| 9 | 81,000 | Slovakia | Important industrial center near Czechia | Zilina | 29%
|
| 10 | 75,000 | Czech Republic | Was called Gottwaldow until 1990, Bata Shoes | Zlín | 23%
|
| 5 | 139,000 | Poland | "Green mountain", Vodka Luksusowa | Zielona Góra | 22%
|
| 3 | 175,000 | Poland | In the greater Silesian metropolitan area | Zabrze | 21%
|
| 15 | 62,000 | Poland | Sounds like if you beg your pardon | Żory | 21%
|
| 7 | 125,000 | Netherlands | Dutch for "freshwater lake" | Zoetermeer | 18%
|
| 16 | 59,000 | Hungary | Nicknamed Egerszeg | Zalaegerszeg | 15%
|
| 12 | 65,000 | Poland | World Heritage, Roztozce National Park | Zamość | 12%
|
| 13 | 63,000 | Spain | City with the most Romanesque churches, Holy Week | Zamora | 11%
|
| 14 | 63,000 | Netherlands | East of Utrecht, residence for the rich | Zeist | 9%
|
| 17 | 57,000 | Poland | Lodz suburb | Zgierz | 8%
|
| 20 | 47,000 | Netherlands | Eastern bank of the River IJssel | Zutphen | 8%
|
| 19 | 50,000 | Poland | Sports club Warta | Zawiercie | 6%
|
| 18 | 56,000 | Romania | Transylvania, Catedrala Adormirea Maicii Domnului | Zalău | 3%
|