World Trade Center Construction World Trade Center Billboard by Wisconsin Historical Images , on FlickrThe World Trade Center Began its life as a series of proposals for a major downtown development in the 1950s. By the mid 1960s, a site was in place, designs were chosen and clearance and construction began around 1967. The twin towers were finally completed in 1973 and the entire WTC development was finished in 1978 with the Vista International Hotel. This is a thread devoted to images of the World Trade Center's creation. Enjoy! Onlookers Observe Construction of World Trade Center by Wisconsin Historical Images , on Flickr