Let's not forget.
The Twin Towers of the World Trade Center, in Manhattan, was one of the most photographed views of the United States. Inaugurated in 1973, with 110 floors and 412 meters high, it was the highest construction of that time. On 11th September 2001, two commercial flights, hijacked by terrorists, hit the Twin Towers. The two tower had suffered a complete structural collapse in 104 minutes, after the first attack. In the September 11 attacks, about 2,800 people died and 1796 were not found.
