NEW YORK (TheStreet) -- Thirteen years after the 9/11 terrorist attacks, lower Manhattan looks very different.
The site of the new World Trade Center hosts the Freedom Tower -- the tallest building in the Western Hemisphere -- as well as a new National September 11 Memorial Museum, which opened in May 2014. Three years ago, on the 10th anniversary of the attacks, the National September 11 Memorial was dedicated to the nearly 3,000 victims and their families. It also pays tribute to the victims of the 1993 bombing of the World Trade Center.
In 2015, construction of the state-of-the art World Trade Center Transportation Hub is expected to be completed. Following completion, it is expected to serve more than 200,000 daily commuters and millions of visitors through 11 different subway lines, the PATH train and the Battery Park City Ferry Terminal, connecting visitors to the World Trade Center's Towers 1, 2, 3 and 4 and the World Financial Center, as well as shops and restaurants located on the main concourse.
On the anniversary of the event, TheStreet took a look at the vast changes that have taken place in and around the site of the WTC since the attacks on Sept. 11, 2001.
The Twin Towers as they were being constructed in 1971. The Port Authority chose lead architect Minoru Yamasaki and associate architects Emery Roth & Sons in 1962 to design the new buildings, according to the New York Times.