1970day.year

The North Tower of the World Trade Center in Manhattan, New York, New York is topped out at 417 metres (1,368 ft), making it the tallest building in the world.

In 1970, the North Tower of New York’s World Trade Center reached its full height of 417 meters, becoming the tallest building globally. The milestone symbolized modern engineering ambition.
On December 23, 1970, construction crews placed the final steel beam atop the North Tower, completing it at 417 meters. Designed by Minoru Yamasaki, the twin towers redefined the New York skyline with their minimalist modernist style. The structural system used a framed-tube design, allowing open floor plans and resistance to wind loads. The topping-out marked success in an international race to build the world's tallest structure, surpassing Chicago's Sears Tower. The complex officially opened in 1973 and quickly became a global financial hub. For nearly three decades, the North Tower held the title of tallest building, symbolizing economic power and architectural innovation.
1970 North Tower World Trade Center Manhattan New York, New York