What are Towers
by Julienne Roberts
1. The first Tower
2. Definition
3. Early Towers
3.1. Bell tower
4. Modern Towers
4.1. Seatle Space Needle
4.2. Tv tower in Prague
5. The tallest towers
6. Beautiful Towers
6.1. HSB Turning Torso
6.2. Petronas
6.3. Kingdom tower