Remembering 9/11: dramatic before-and-after images

To mark the 15th anniversary of the Sept. 11, 2001 terrorist attacks, CTVNews.ca has put together a selection of some of the most dramatic before-and-after photos showing what New York was able to build over the years from the rubble of Ground Zero and the surrounding areas.

Instructions: On desktop, hover over the images to toggle between "before" and "after" shots. On mobile, tap an image to reveal the "after" photo.
 

View across the river

Before: On June 23, 1999, the twin towers of the World Trade Center in New York skyline. Both buildings were destroyed on Tuesday, Sept. 11, 2001 after two airliners were hijacked by terrorists and crashed into them. (AP / Ed Bailey)

After: On Sunday, Sept. 7, 2014, One World Trade Center towers above the lower Manhattan skyline in New York. Thirteen years after 9/11 forever changed the New York skyline, officials say developments at the World Trade Center are on track and on budget. (AP / Mark Lennihan)

 

Brooklyn Bridge

Before: The Brooklyn Bridge is seen spanning New York's East River, with the twin towers of the World Trade Center in the background, June 12, 1990. (AP / Marty Lederhandler)

After: Smoke rising behind the Brooklyn Bridge over the East River frames the skyline of Manhattan, minus the World Trade towers, as seen from Brooklyn early Wednesday, Sept. 12, 2001, the day after hijacked airplanes crashed into both buildings causing their collapse. (AP / Kathy Willens)
 

The Hilton

Before: Medical and emergency workers, who are standing in front of the Millenium Hilton, look towards where the World Trade Center towersused to be, after a terrorist attack on the twintowers of lower Manhattan Tuesday, Sept. New York. (AP / Mark Lennihan)

After: Pedestrians pass the Hilton Hotel on Church St. in lower Manhattan, Aug. 4, 2011, in New York. (AP / Mark Lennihan)
 

Broadway

Before: Broadway near Ground Zero on the evening of September 11, 2001 after the September 11 terrorist attacks on the World Trade Center in New York City. (AP / Mark Lennihan)

After: Pedestrians pass a McDonald's restaurant on Broadway in lower Manhattan, Aug. 4, 2011, in New York. (AP / Mark Lennihan)
 

Ground Zero

Before: Emergency workers at Ground Zero on Sept. 11, 2001. (AP / Mark Lennihan)

After: Pedestrians walk along Church Street past Century 21 clothing store in lower Manhattan, Aug. 4, 2011, in New York. (AP / Mark Lennihan)
 

Subway

Before: A destroyed subway station near Ground Zero on the evening of Sept. 12, 2001. (AP / Mark Lennihan)

After: Pedestrians walk along Church Street in lower Manhattan, Aug. 4, 2011 in New York. Behind them is the tower known as Four World Trade Center. (AP / Mark Lennihan)
 

Park Row - lower Manhattan

Before: Pedestrians flee the area of the World Trade Center as the center's south tower collapses following a terrorist attack on the New York landmark Tuesday, Sept. 11, 2001. (AP / Mark Lennihan)

After: Pedestrians cross Park Row in lower Manhattan, Aug. 4, 2011 in New York. (AP / Mark Lennihan)
 

World Trade Center

Before: People covered in dust walk over debris near the World Trade Center in New York. (AP / Gulnara Samilova)

After: Pedestrians walk near the World Trade Center in lower Manhattan, Aug. 8, 2011 in New York. (AP / Mark Lennihan)
 

Downtown Skyline

Before: Smoke rises into the sky following the collapse of World Trade Center Towers Tuesday, Sept. 11, 2001 in New York. (AP / Suzanne Plunkett)

After: The skyscraper known as One World Trade Center, right, rises in lower Manhattan, Aug. 10, 2011 in New York. (AP / Mark Lennihan)
 

From above

Before: An aerial view shows part of the crime scene where the World Trade Center collapsed following the Sept. 11 terrorist attack. Surrounding buildings were heavily damaged by the debris and massive force of the falling twin towers. (U.S. Navy photo by Chief Photographer's Mate Eric J. Tilford / slagheap / flickr / (CC BY-SA 2.0))

After: The National September 11 Memorial is a tribute to the victims of the attacks. Sitting within the footprints where the Twin Towers once stood are twin reflecting pools, each nearly an acre in size. Architect Michael Arad and landscape architect Peter Walker created the design selected from a global design competition that included more than 5,200 entries from 63 nations.