A. Blackpool tower
B. Effile tower
C. Pisa tower
D. Tokyo tower
🧠 Explanation:
The Leaning Tower of Pisa, located in Italy, is famous for its unintended tilt, caused by unstable soil during its construction in the 12th century. A UNESCO World Heritage Site, it attracts millions for its architectural curiosity and historical significance. Stabilization efforts have preserved it as a cultural icon. Studying the tower highlights engineering challenges, Italian heritage, and tourism’s economic impact, a key topic in architecture and cultural studies, reflecting the interplay of history and structural innovation.