Manassas farmers market, 7:30 a.m.-1 p.m. Thursdays, Loy E. Harris Pavilion, 9201 Center St. 7:30 a.m.-1 p.m., Parking Lot B, West Street (next to the train station visitors center). 703-361-6599 or www.visitmanassas.org.
“9/11: We Remember,” features an I-beam from the World Trade Center, a Pentagon building fragment and other items in commemoration of the anniversary of Sept. 11, 2001. 9 a.m.-5 p.m. daily, National Museum of the Marine Corps, 18900 Jefferson Davis Hwy., Triangle. Free. 877-635-1775.
“Enduring Legacy: Liberia Plantation 1825-2013,” an exhibit detailing the history of the plantation. 10 a.m.-5 p.m. Tuesdays-Sundays, Manassas Museum, 9101 Prince William St., Manassas. $5; seniors and children, $4; Baldwin students and their families, free. 703-368-1873.
“Escapes,” Jackie Perry exhibits her paintings of places and objects that provide moments of escape. 11 a.m.-4 p.m. Tuesdays-Fridays, 11 a.m.-5 p.m. Saturdays and noon-5 p.m. Sundays, through Aug. 4, Loft Gallery, 313 Mill St., Occoquan. Free. 703-490-1117.
“Now and Then,” an exhibit of oil paintings and sketches by Steve Myles of Oakton and woodturning and woodburning by Bob Horowitz of Falls Church. 11 a.m.-5 p.m. daily, through Aug. 5, Artists’ Undertaking, 309 Mill St., Occoquan. Free. 703-494-0584.
Spanish chat, bring lunch and practice speaking Spanish. Noon-2 p.m., Central Community Library, 8601 Mathis Ave., Manassas. 703-361-8211.
Gainesville farmers market, 2-6 p.m. Thursdays, Marque at Heritage Hunt, 13550 Heathcote Blvd., Gainesville. 703-754-7711.
Reptiles Alive, a close-up look at alligators, lizards and other reptiles. 11 a.m. and 1 p.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge. Free. 703-494-8126.
Haunted Occoquan walking tour, paranormal investigator Kay Pietrewicz leads tours through the town. 8 p.m. Wednesdays-Fridays, 4 and 8 p.m. Saturdays, Occoquan Visitors Center, 200 Mill St. $12; children 6-12, $6; children 5 and younger, free. 571-572-9410 or www.haunted-occoquan.com.
Manassas Park farmers market, 3-7 p.m., Manassas Park City Hall, 1 Park Center Ct. 703-335-8800.
Friday Night Family Movie, “Diary of a Wimpy Kid 3.” 8:30 p.m., Loy E. Harris Pavilion, 9201 Center St., Manassas. Free.703-361-9800.
Occoquan farmers market, 8 a.m.-noon, Mill Street parking lot, next to Route 123 bridge, Occoquan. 703-491-1918.
Kids fishing tournament, for ages 2-15. 9-11 a.m., Leesylvania State Park, 2001 Daniel K. Ludwig Dr., Woodbridge. Program, free; parking, $5. 703-583-6904.
“Ten Steps to a Greener Lawn,” master gardener John Miller shares tips for keeping grass green and waterways clean. 10 a.m.-noon, Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. Free, registration required.703-792-7747.
Manassas African American Heritage Festival, includes a classic car show, live entertainment, an authors’ corner, health fair, more than 100 vendors, children’s activities and free school supplies. Noon-6 p.m., Grace E. Metz Middle School, 9950 Wellington Rd., Manassas. 703-369-2475 or www.maahf.com.
Dog Days of Summer, bring your dog out for treats and competitive games. 1-3 p.m., Loy E. Harris Pavilion, 9201 Center St., Manassas. 703-361-9800.
Andrew McKnight and Beyond Borders, a mix of Appalachian, blues and folk music, part of the Center for the Arts’ SummerSounds Concert series. 6:30 p.m., Loy E. Harris Pavilion, 9201 Center St., Manassas. Free. 703-361-9800.
Canoe tour, a ranger leads a guided tour on Powell’s Creek. 6:30 p.m. Saturday, 7 a.m. Sunday, Leesylvania State Park, 2001 Daniel K. Ludwig Dr., Woodbridge. $9, registration required. 703-583-6904.
Dale City farmers market, 8 a.m.-1 p.m., Dale City Commuter Lot, behind Center Plaza Shopping Center, Dale Boulevard. 703-670-7112, Ext. 227, www.pwcparks.org.
Lake Jackson Mid-County Lions Club meeting, 6:30 p.m., Hibachi Buffet and Sushi, 8121 Sudley Rd., Manassas. Free.703-791-5227.
“Larsen’s Amazing World of Reptiles,” see, feel and hold reptiles, including a bearded dragon, chameleons, iguanas, turtles and snakes. 3 p.m., Central Community Library, 8601 Mathis Ave., Manassas. Free, registration required.703-361-8211.
English Conversation Club, new speakers of English practice their skills. 11 a.m. and 7 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. 703-792-4800.
Job search network group, 6-7:30 p.m., House of Mercy, 8170 Flannery Ct., Manassas. 703-659-1636.
Lake Ridge Toastmasters Club, Lake Ridge Club 8913. 7:30 p.m., Tall Oaks Community Center, 12298 Cotton Mill Dr. $62 membership fee. 703-491-3020.
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