The city is encouraging New Yorkers to leave their cars at home this Earth Day and make use of mass transit or other means of getting around.
It's called Car-Free Day, and several streets around the city were closed to vehicle traffic today.
Those streets also hosted festivities to promote clean energy and environmentalism.
Organizers said the event is the start of a great tradition.
"I believe that this is only the beginning," said City Council Member Ydanis Rodriguez of Manhattan. "Saturday, April 22, 2017, we will have our next Car-Free Day and that one next year will be even bigger than the one here today."
"Last year we had ten million rides on Citi Bike in our city," said the CEO of Motivate, Jay Walder. "What does that mean? What does that mean for our planet? That means four thousand metric tons of CO2 were eliminated."
And today won't be the only Car-Free Day this year. The city's transportation department also unveiled its 2016 Weekend Walks schedule.
It features more than 100 days of car-free activities around the five boroughs from May until October.
The bike-share program says it wants riders to "go green by going blue," and use Citi Bikes as an environmentally-friendly form of transportation for Earth Day.
Citi Bike has 7,500 bikes at nearly 500 stations in Manhattan, Brooklyn, and Long Island City in Queens.
To claim your free ride, visit citibikenyc.com