On this day in 1973, the World Trade Center’s Twin Towers opened. At the time of their completion, One World Trade Center (the North tower) and Two WTC (the South Tower) stood as the tallest buildings in the world.
Since late April 2012, 1 World Trade Center — no longer called Freedom Tower — had rightfully reclaimed the title of being the tallest building in New York, and by the time of its completion in 2013, 1 WTC will stand on the site of its forefathers as the tallest building in the Western Hemisphere.
The first concrete poured for the World Trade Center in September of 1966.
Further construction at World Trade Center on April 16, 1968.
Here we see the Twin Towers under construction along the Hudson River, 1970, as seen from Jersey City, New Jersey.
A crane moves materials on February 11, 1971, as the Twin Towers are erected at the World Trade Center.
The Twin Towers, 1 World Trade Center (pictured right) standing at 1,368 feet, and 2 World Trade Center (pictured left) standing at 1,362 feet on April 3, 1972, the day before their opening.
After the towers fell, and after a long-drawn-out process to replace them ended in a plan to rebuild, construction began on 1 WTC. Here, see cranes at work on the World Trade Center transportation hub in August of 2012.
Where we are now: One World Trade Center rising above lower Manhattan last week, Wednesday, March 27, 2013. Cranes on top of the tower are seen installing the spire that will make the 104-floor skyscraper the tallest in the Western Hemisphere.