​ Leaf peeper map of New York State

Saturday

Korean festival and parade Dance, taekwondo, food, music and cooking lessons.

Chile Pepper Fiesta, Brooklyn Botanic Gardens Music, chile-chocolate cooking, Qigong lessons, and hot stuff samples. Free with admission to the Gardens ($8 adults, $4 students, seniors, and kids over 12. Kids under 12 free)

Colonial Day, Fort Greene Park Hands-on games, cooking and butter churning

Garden walking tours overlooking the Hudson in Fort Tryon Park

Family Day at the Whitney A day of Georgia O'Keefe for $10/family

Tibetan Festival, Staten Island

Czech Street Festival Music, raffles, and serious street food

Archery lessons Equipment provided

Autumn Moon Harvest Festival, Chinese Scholar's Garden, Snug Harbor Cultural Center, Staten Island

Wall Street walking tour

Astonomy lecture at the Inwood Public Library (with NASA swag), and stargazing in Inwood Park (telescope and astronomer provided)

Leukemia & Lymphoma Society: Light the Night Walk, Staten Island

Sunday

Medieval Festival, Fort Tryon Park (pdf) Performers, craft vendors, medievalish food, live chess, jousting, the Society for Creative Anachronisms, and every year's greatest roaming costume parade on the grounds of our local medieval monastery. Like a Ren Faire, only earlier.

Blessing of the animals and St Francis Day fair at the Cathedral of St John the Divine. Tickets distributed first come first served. There's also a secular pet parade and festival at Pier 84.

Atlantic Antic street fair 10 blocks of street food on Atlantic Avenue in Brooklyn

EcoFest, Central Park

Bronx Museum Open House and Street Fair Music, dancing, local food vendors, activities for kids and free admission to the museum.

International Pickle Day Street Festival, LES

They Might Be Giants, under the blue whale at the Museum of Natural History - free with museum admission

Apple Festival and pick your own pumpkin at the Queens County Farm Museum

Rockaway Fall Festival Pumpkins, ponies and hay rides at the beach

All Weekend

Catapult Month events at the NY Hall of Science, Queens: explanations and thing-hurling.