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The Twin Towers had 110 floors each. The construction of the Twin Towers cost $900 million USD.

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The Twin Towers, officially known as the World Trade Center 1 and 2, were iconic structures that graced the New York City skyline from their completion in the early 1970s until their tragic demise in 2001. Each tower boasted 110 floors, standing as a symbol of architectural and engineering prowess. The collection of 110 floors per building was not just a number—it represented scaling new heights in the realm of skyscraper construction at the time, making them among the tallest buildings in the world.

The journey to materializing these monumental structures on the Manhattan landscape came with a hefty price tag. The construction of the Twin Towers incurred a cost of around $900 million USD, a staggering amount during that era, adjusted for inflation, that amount would be even more formidable today. This significant investment underscored the ambition and economic might behind the project, which was spearheaded by the Port Authority of New York and New Jersey.

The design and construction phase of the World Trade Center complex, including the Twin Towers, faced numerous challenges, ranging from financial hurdles to engineering feats. Designed by architect Minoru Yamasaki and developed by the Port Authority, these skyscrapers involved some innovative construction techniques. For instance, the Twin Towers employed a framed-tube structural system that was revolutionary at the time. This design not only supported the massive height of the towers but also facilitated the large, open office spaces that were preferred by corporate tenants.

However, the completion of these towers was not merely an end but a beginning to a new era in skyscraper design, addressing both the aspirations and the skyline of New York City. They symbolized the resilience and forward-thinking of America, setting a benchmark for future buildings around the world. Yet, their existence was tragically cut short when they were destroyed during the terrorist attacks of September 11, 2001. The loss of the Twin Towers was a profound and sobering event, deeply impacting not just New York City or the United States, but the entire world, reinforcing the importance of security considerations in modern architectural design.

Despite their absence, the legacy of the Twin Towers continues to influence the development of skyscrapers and urban landscapes globally, serving as a reminder of both human ingenuity and vulnerability. The site where they once stood now hosts the One World Trade Center and the National September 11 Memorial & Museum, symbolizing resilience, remembrance, and renewal.