All events are free unless indicated. Saturday: Natural Areas Open House, 10:00 a.m.–2:00 p.m. Join a guided nature exploration, exciting exhibits detailing the in-depth human and natural history of Randall’s Island and nature themed crafts and games. Be sure to visit the birding scopes to get a front row seat to see egrets, harbor herons, and more in their natural environment. Randall’s Island Natural Areas in Randall’s Island Park. Brooklyn Center for the Performing Arts at Brooklyn College, Big ‘Rig’: The Regina Opera Company performs one of Verdi’s most popular operas, “Rigoletto,” at Regina Hall in Dyker Heights through Nov. 25. Bay Ridge Walk-a-thon. The event raises funds to support the programs including home delivered meals to the elderly. The walk is 1.9 miles and begins at the center. Prizes given to the walkers who raise the most money. Pre-registration suggested. Bay Ridge Center, 411 Ovington Ave. at Fourth Avenue (718) 748–0873 X115, 10 am. How to Make Anything into a Camera. Photoville workshop on the history of pinhole cameras, and a lesson on how to make one. Brooklyn Bridge Park, enter at Furman at Joralemon Streets, (718) 215– 9075, http://www.photoville.com, Noon–1 pm.
Sunday: International Hip-Hop Night, BAM Café, 30 Lafayette Ave. between Ashland Place and St. Felix Street, http://www.bam.org/programs/bamcafe-live, 10 pm, free. Brooklyn Book Festival, 10:00 a.m.–6:00 p.m. The Brooklyn Book Festival is the largest free literary event in New York City, presenting an array of national and international literary stars and emerging authors. One of America’s premier book festivals, this hip, smart diverse gathering attracts thousands of book lovers of all ages to enjoy authors and the festival’s lively literary marketplace. Rain or shine Brooklyn Borough Hall, 209 Joralemon Street, Brooklyn. Source360 Block Party, Fort Greene, Street-wear fashion show and vendors. Rockwell Place, between Dekalb and Fulton Avenues, http://www.eventbrite.com/e/source360-explorebkcom-block-party-outdoor-fashion-show-streetwear-tickets-12760798893?aff=es2&rank=2. Noon–6 pm. Trav-o-lution University: How did we get from horse drawn streetcars to motorbuses? Children get honorary degrees in trav-0-lutionary science by learning all about the history of travel; New York Transit Museum, Boerum Place at Schermerhorn Street, http://www.mta.info/mta/museum, Saturday 1:30 pm, Sunday 1:30 pm, free with museum admission. San Gennaro Festival with the last day Sunday in Little Italy street fair, sangennaro.org photos. Flatbush Frolic: Street festival with live music, arts and crafts, rides, games, Courtelyou Road between Coney Island and Ocean Avenues, http://www.flatbushfrolic.org, 11 am–6 pm. Montague Street Festival, Montague Street, between Clinton and Hicks Streets, http://montaguebid.com/summerspace, 12 pm–5 pm. Autumn Equinox Celebration, a sunset ceremony, Grand Army Plaza, Union Street between Flatbush Avenue and Prospect Park West, 6:30 pm. The Bronx Native American Festival, 12:00 p.m.–4:00 p.m. Pelham Bay Park will host four hours of performances, exhibits, arts and crafts, delicious food, storytelling. Guests of all ages will enjoy the ability to interact with many of the performances and activities, while learning about the traditions and lifestyles of such native groups such as the Taino, Oneida, and more. South Picnic Area in Pelham Bay Park, Bronx. Historic New York: Estates of Pelham Bay, 1:00 p.m. Once there were many mansions on the shores of Pelham Bay. Now, only Bartow-Pell remains. Learn about the neighboring grand country estates on this fascinating hike with an Urban Park Ranger. Bartow-Pell Mansion Museum in Pelham Bay Park, 895 Shore Road, Bronx. Isadora Duncan Dance Performance and Workshop, 3:00 p.m. This free outdoor performance will unfold the life and art of Isadora Duncan with sensational dancing, delighting audiences of all ages. The family-friendly program will be followed by a children’s sample class. This will be a rare opportunity for audiences to see original Duncan choreography coached by dancers from Duncan’s original troupes. Bring your friends and a blanket and/or chairs, and enjoy an afternoon of nature and dance with them. Billings Lawn in Fort Tryon Park, Manhattan. Kaufman Astoria Studios Tour, 11am to 5 pm., Museum of the Moving Image, 36-01 35th Ave. Queens, NY, free. BEHIND THE SCENES, New York on Location, a free, family-friendly event, offers participants an extensive, daylong glimpse into the nuts and bolts of film production in New York City. Presented by the Museum of the Moving Image, Kaufman Astoria Studios (home to such recent TV shows as Orange Is the New Black, Nurse Jackie, and the forthcoming State of Affairs), and Theatrical Teamsters Local 817, the tour features a total of more than 20 movie trailers and trucks, where attendees can speak to and learn from industry professionals about everything from electrical and camera equipment to makeup, hairdressing, and wardrobe. In addition to the Museum and the gated back lot at Kaufman Studios, the event explores various surrounding streets in Astoria, where — among other attractions — a group of stunt professionals presents demonstrations in live street fighting, stunt driving, and more. http://www.movingimage.us/visit/calendar/2014/09/21/detail/new-york-on-location. Stunts http://www.movingimage.us/visit/calendar/2014/09/21/detail/stunts-and-special-effects-at-new-york-on-location.