History of the world's tallest buildings of world's tallest building was borne by shorter buildings. St. Mary's Church in Stralsund became the world's tallest building after the collapse of Lincoln Cathedral's spire. The central tower of St. Pierre's Cathedral was tallest from 1569 until it collapsed in 1573, making St. Mary's the tallest once again. In 1647, the bell tower of St. Mary's burned down, making the shorter Strasbourg Cathedral the world's tallest building. It was not until the completion of the Ulm Minster in 1890 that the world's tallest building was again also the tallest building ever constructed, surpassing the original configuration of Lincoln Cathedral.
World Trade Center (1973–2001) When completed in 1973, the South Tower, Two World Trade Center (the South Tower) became the second tallest building in the world at ; the South Tower's rooftop observation deck was high and its indoor observation deck was high. Each tower stood over high, and occupied about of the total of the site's land. During a press conference in 1973, Yamasaki was asked, "Why two 110-story buildings? Why not one 220-story building?" His tongue-in-cheek response was: "I didn't want to lose the human scale." When completed in 1972, 1 World Trade Center became the tallest building in the world for