Organizers say the Saturday night event was a first-of-its-kind live video projection.
It drew large crowds of spectators, many taking photos with their smartphones.
Images of endangered animals, including birds, tigers, bears and other creatures, shined on the south side of one of the city’s most iconic landmarks.
The event was meant to spark conversations about mass extinction.
It was organized as part of a promotion for a new Discovery Channel documentary, Racing Extinction, which is set to air in December.
