In this picture taken on February 27, 1970, the south tower of the World Trade Center is under construction. The cranes of Koch Steel top the jagged structure. In the background, the north tower, is substantially more complete than its sister. @ALifetimeLegacy

In this picture taken on February 27, 1970, the south tower of the World Trade Center is under construction. The cranes of Koch Steel top the jagged structure. In the background, the north tower, is substantially more complete than its sister. @ALifetimeLegacy