Within days of the 9/11 attacks in New York City, Brian Cury installed a webcam at the site. He wanted the families of victims — and the world, he says — to witness the brave determination of first responders working at what became known as Ground Zero.

In the weeks, months and years that followed, Cury, the founder and CEO of EarthCam, added more cameras that documented the rebuilding of the site and construction of the National 9/11 Memorial Museum.

Ten years and one million images later, Cury's team released a video on Thursday that shows a stunning time-lapse of the site's construction.

"This commemorative time-lapse honors the victims of 9/11 and is dedicated to their families and friends, with special gratitude to the first responders and the steadfast construction teams," Cury says. "I hope this time-lapse serves as a way to recognize that for the 10 years of construction, there was constant progress made to rebuild these important 16 acres of America."

EarthCam's has donated all of the images — and the original camera — to the 9/11 Memorial Museum that opens to the public for the first time on Wednesday.

Its cameras are still trained on the site and streaming online for all to see.