World Maker Faire New York is September 23 and 24 this year.

“Maker Faire is the Greatest Show (and Tell) on Earth—a family-friendly festival of invention, creativity and resourcefulness, and a celebration of the Maker movement.
Part science fair, part county fair, and part something entirely new, Maker Faire is an all-ages gathering of tech enthusiasts, crafters, educators, tinkerers, hobbyists, engineers, science clubs, authors, artists, students, and commercial exhibitors. All of these “makers” come to Maker Faire to show what they have made and to share what they have learned.
Maker Faire is a gathering of fascinating, curious people who enjoy learning and who love sharing what they can do.”

Early Bird tickets are on sale now.
AAAND if you have NY Hall of Science (NYSCI) membership you can get an additional 50% off promotional code.