tests by lutzen with the online test builder (11 tests)
Ranked by: number of candidates
1. Horse-riding (7115 candidates)
2. Vocabulary; teeth (4263 candidates)
3. War of the Roses (3330 candidates)
4. Castles and British Palaces (1995 candidates)
5. Royal Family (1747 candidates)
6. Dynasty of Hanover (1541 candidates)
7. Stuart dynasty (1518 candidates)
8. Tudor dynasty (1399 candidates)
9. Scotland (1240 candidates)
10. Wimbledon Championship (922 candidates)
11. Plantagenet dynasty (585 candidates)