1. What does the Arabic name 'Alhambra' translate to in English?

2. From which region in Wales were the 'bluestones' of Stonehenge transported?

3. Mount Fuji is classified as which type of volcano known for its symmetrical, conical shape?

4. What material covers the exterior of the Guggenheim Museum Bilbao, giving it its shimmering, scaly appearance?

5. What surprising factor has helped the Leaning Tower of Pisa survive multiple earthquakes?

6. What did the Old Russian word for 'Red' (krasnaya) also mean when the square was named?

7. What did architect Bernini intend the massive colonnades of St. Peter's Square to represent?

8. Under which Ottoman Sultan did construction of the Grand Bazaar begin?

9. What is unique about Djemaa el-Fna's UNESCO recognition?

10. What makes the Tower of Hercules unique among all other Roman lighthouses?

11. The Gateway of India was built to commemorate the 1911 visit of which British monarch?

12. The tripod-shaped structural system used to stabilize the Burj Khalifa is known as what?

13. What is the primary engineering benefit of the Shanghai Tower's 120-degree spiral shape?

14. Unlike the Panama Canal, why does the Suez Canal not require a system of locks?

15. According to legend, what animal must remain at the Tower of London to prevent the fall of the Kingdom?

16. The water for the Trevi Fountain is supplied by which ancient Roman aqueduct?

17. What technology is primarily used to propel the water in the Bellagio Fountains to such extreme heights?

18. What environmental benefit does the Rain Vortex provide to the Jewel Changi complex?

19. Which famous shopping mall in Bangkok is known for luxury brands?

20. Which area in Bangkok is famous for vibrant nightlife?