From different perspectives, the Manhattan skyline will have different beauty, but the most eye-catching is always the tallest building in New York ~ 104 floors, 546 meters high New York World Trade Center. The new building is built next to the ruins of the collapsed World Trade Center Twin Towers, also known as the "Freedom Tower". On the facade of the building wall, there are two model aircraft, located at the height of the 9/11 plane when it hit the twin towers, to warn people that freedom is not easy.