77 events on february 21 on the BIG City Calendar!

Heads up at the APS — The APS Museum is a stop on Halloween in the Historic District Sun Oct 18, 11am–3pm — free trick-or-treating at 40+ sites; treat bags and maps at the Independence Visitor Center, 599 Market. Wooder Ice

Heads up in #arts — Philadelphia Open Studio Tours, east of Broad, Oct 17–18 — free, self-guided, about 20 neighborhoods. REEL October, the 35th Philadelphia Film Festival, runs Oct 15–25 with 140+ screenings, some free. Visit Philly

Heads up in #family — Revolutionary Philadelphia: 1776 at the Museum of the American Revolution, Oct 17–18 — outdoor plaza activities free, guided tour $10 extra, costume contest Sun 11am–3pm. Visit Philly

Heads up in #outdoors — Open Streets: West Walnut — seven car-free blocks, Sundays thru Oct 25. Philly Bike Ride Sat Oct 17, 7am: 20 miles of car-free streets, 5th year; registration required, finish-line festival free. Visit Philly

Heads up at the Art Museum — Last week for “Workshop of the World: Arts and Crafts in Philadelphia” — 250 objects, thru Sun Oct 18. Visit Philly

Heads up at the Penn Museum — 15th annual CultureFest! Día de los Muertos Sat Oct 24, 10am–4pm — a monumental ofrenda, artisan marketplace, bilingual storytelling, free pan de muerto samples at 3:15. Included with admission. source

Heads up at the RiverRink — Holiday Tree Lighting is Sun Nov 29, 6–8pm, rain or shine. Skating $5, rentals $12 — sessions sell fast. On-site parking limited by I-95 CAP construction. Tree lighting

Heads up in #fitness — The Rocky Run, Sat Nov 14 — 10-miler, 5K and half marathon; ~40,000 runners expected from all 50 states and 75 countries. Visit Philly

Heads up in #nomnomslurp — Scrapple & Apple Festival at Reading Terminal Market, Sat Oct 17, 10am–5pm — free to attend, pay-as-you-go. Philly Vegan Restaurant Week runs thru Oct 17 at over a dozen restaurants. Visit Philly

Heads up in #music — Philly Music Fest turns 10, Oct 12–18 — 25 bands and musicians over seven nights at independently owned venues. Visit Philly

Heads up at the Rail Park — Dance on the Park finale Sat Oct 31, 9pm–midnight — a free salsa and bachata lesson with Siempre Salsa, then open dancing. Come in costume. Yappy Hour Thu Oct 29. Dance on the Park

Heads up at PhilaMOCA — Philly Archives Film Fest Wed Oct 28 is free. The Bechdel Cast (Oct 17) and Godzilla Day (Nov 3) are sold out; the Psychotronic Awards Oct 19 are $5 at the door. PhilaMOCA calendar