"CITIZEN DIPLOMACY" LECTURE, discussion of the role of individuals in public diplomacy, by Sherry Mueller, president of the National Council for International Visitors, sponsored by the Mount Vernon Branch of the American Association of University Women, 7 p.m., Sherwood Hall Library, 2501 Sherwood Hall Lane, Alexandria. Free. 703-768-8996.
WOLF TRAP CONCERT, pop, folk and jazz by David Wilcox, 8 p.m. today and Friday, the Barns at Wolf Trap, 1635 Trap Rd., Vienna. $22. Tickets, 703-218-6500; information, 703-255-1860.
HERNDON CHORAL CONCERT, U.S. Army Chorus, 7:30 p.m., Herndon United Methodist Church, 701 Bennett St. Free. 703-696-3399.
VIENNA COOKBOOK WORKSHOP, how to create a cookbook using family recipes and photos, by Diane King, former editor-in-chief of Pillsbury Cookbooks, sponsored by Vienna Parks and Recreation Department, 9-10:30 a.m. Fridays, through Nov. 18, Vienna Community Center, 120 Cherry St. SE. $37.50; Vienna residents, $30. 703-255-6360.
MCLEAN ORIENTAL RUG SALE, imported Persian, Turkish and Oriental carpets, kilims, mirrors, Turkish silver jewelry, camel bags and baby carriers, sponsored by the Naval Officers' Wives' Club of Washington, D.C., to benefit military-related charities, 10 a.m.-7 p.m. Friday and Saturday, 10 a.m.-5 p.m. Sunday, American Legion Post 270, 1355 Balls Hill Rd., McLean. Free admission. 703-356-9418.
UNIVERSITY CONCERT, the King's Singers and Ensemble Sarband, 8 p.m.; discussion, 7:15 p.m., George Mason University, Center for the Arts, Concert Hall, Fairfax. $44, $36, $22. 888-945-2468.
VIENNA HAUNTED PARK TOUR, for 8 and older, sponsored by Vienna Parks and Recreation Department, 7:30, 8:15, 9:15 and 10:45 p.m., Glyndon Park, 300 Glyndon St. NE. $5; tickets must be purchased in advance at the Vienna Community Center, 120 Cherry St. SE. 703-255-6352.
LASALLE DANCE ORCHESTRA, concert, "Music of the Jazz Age," 8 p.m., Old Town Hall, 3999 University Dr., Fairfax. Free. 703-253-2787.
CANOE TRIPS, for 16 and older, tours guided by a Northern Virginia Regional Park Authority staff member to view wildlife and autumn foliage, no experience necessary, 8 a.m.-noon and 1 to 5 p.m., Pohick Bay Regional Park, 6501 Pohick Bay Dr., Lorton. $25; reservations required. 703-339-6104.
GHOST TRAIN RIDE, for 10 and younger, through "haunted woods," costumes recommended, 10 a.m.-4:45 p.m. Saturday and Sunday, Burke Lake Park, 7315 Ox Rd., Fairfax Station. $3; 2 and younger, free; carousel rides, $1.25. 703-323-6600.
FORT WARD TOURS, guides in period uniforms lead tours of the Civil War Union fort, 10 a.m.-2 p.m., Fort Ward Museum and Historic Site, 4301 W. Braddock Rd., Alexandria area. Free. 703-838-4848.
GARDEN, WOODS TOUR, with gardener Andrew Jenkins, who will discuss how to grow native and non-native trees that offer good fall color, 10:30 a.m., Meadowlark Botanical Gardens, 9750 Meadowlark Gardens Ct., Vienna. Free; reservations required. 703-255-3631.
SULLY LANTERN TOURS, guided tours by lantern light through the first floor of the 1794 house and outbuildings, 6-7:45 p.m., Sully Historic Site, 3601 Sully Rd., Chantilly. $6; children, $4; reservations required. 703-437-1794.
CHANTILLY HALLOWEEN PROGRAM, for 8 and older, a haunted walk, ghost stories and marshmallow roasting, bring a pumpkin to carve, wear a costume, 6:30-8 p.m., Ellanor C. Lawrence Park, 5040 Walney Rd., Chantilly. $3. 703-631-0013.
KENNY RANKIN CONCERT, jazz vocals, 7:30 p.m., the Barns at Wolf Trap, 1635 Trap Rd., Vienna. $20. Tickets, 703-218-6500; information, 703-255-1860.
GREAT FALLS BALLROOM DANCE, big-band music by the Colvin Run Dance Band, 9 p.m.-midnight; waltz lesson, 8 p.m., Colvin Run Schoolhouse, 10201 Colvin Run Rd., Great Falls. $12; lesson, $5. 703-430-6557.
NEW ORLEANS LEVEES, Gerald Galloway, visiting scholar at the U.S. Army Corps of Engineers Institute for Water Resources, discusses how Hurricane Katrina affected the levees; lecture co-sponsored by the League of Women Voters, 2 p.m., Pohick Regional Library, 6450 Sydenstricker Rd., Burke. Free; reservations required. 703-644-7333.
BULB AND PLANT EXCHANGE, sponsored by the Town of Herndon's Cultivating Community Initiative, participants bring bulbs and plants to exchange; label plants with names, colors, blooming times and planting locations, 2-3 p.m.; a limited number of plants will be available for purchase, 3-5 p.m., Herndon Town Hall Square, 730 Elden St. Free. 703-435-6800, Ext. 2222.
FALLS CHURCH HAUNTED HOUSE, for all ages, sponsored by the George Mason High School Band and Chorus Department, with a bake sale, 2-5 p.m., Thomas Jefferson Elementary School, 601 S. Oak St., Falls Church. One to three people, $15; four or more, $20. 703-534-8488.
CAPITAL WIND SYMPHONY, concert, 3 p.m., McLean High School, 1633 Davidson Rd., McLean. $10; seniors, $5; students and children 6 and younger, free. 703-938-3521.
VIENNA COMMUNITY BAND, concert with a Halloween theme, 3 p.m., Vienna Community Center, 120 Cherry St. SE. Free. 703-281-4077.
RESTON CHAMBER ORCHESTRA, concert, works by Schubert, Barber and Mozart, 4 p.m., Reston Community Center, 2310 Colts Neck Rd. Donations requested. 703-476-4500.
NEW DOMINION CHORALE, concert, performance of Brahms's "Requiem," 4 p.m., Rachel M. Schlesinger Concert Hall, Northern Virginia Community College, 3001 N. Beauregard St., Alexandria area. $25; seniors, $20; students, $15. 703-442-9404.
FAIRFAX MUSIC AND DISCUSSION, for adults and children, pianist Jeffrey Siegel discusses Mozart's influence on Schubert, 7 p.m., George Mason University, Center for the Arts, Concert Hall, Fairfax. $17.50-$35; 12 and younger, half-price. 888-945-2468.
WOLF TRAP FOLK CONCERT, by singer-songwriter John Gorka, 7:30 p.m., the Barns at Wolf Trap, 1635 Trap Rd., Vienna. $20. Tickets, 703-218-6500; information, 703-255-1860.
OAKTON CRAFTS SHOW, more than 40 artists and artisans sell seasonal crafts, wreaths, jewelry, candy, baked goods, pottery, toys and gifts, 2-9 p.m. Monday, 10 a.m.-9 p.m. Tuesday and Nov. 4, 10 a.m.-7 p.m. Wednesday and Nov. 3, and 10 a.m.-6 p.m. Nov. 5, Vale Schoolhouse, Vale and Fox Mill roads, Oakton. Free admission. 703-321-8373.
FALLS CHURCH HALLOWEEN CARNIVAL, games, a moon bounce, face painting, crafts, a haunted house, movies and candy, sponsored by the City of Falls Church Recreation and Parks Division; second-graders and younger children, 6-7 p.m.; third- through sixth-graders, 7:30-8:30 p.m.; creepy creature show for sixth-graders and younger children, 7-8 p.m., Falls Church Community Center, 223 Little Falls St. Free. 703-248-5077.
JAMESTOWN BUS TRIP, self-guided tours of Jamestown Island, sponsored by Vienna's Virginia 2007 Committee and the Vienna Parks and Recreation Department, 8 a.m.-8 p.m., meet at Vienna Community Center, 120 Cherry St. SE. $60. 703-255-6360.
FAIRFAX CITY COUNCIL MEETING, 7 p.m., Fairfax City Hall, 10455 Armstrong St. 703-385-7935.
HERNDON TOWN COUNCIL MEETING, 7:30 p.m., Herndon Council Chambers, 765 Lynn St. 703-435-6804.
ANNANDALE CHORAL CONCERT, the four choirs of Annandale High School's Choral Department perform Vivaldi's "Gloria," followed by a reception, 7:30 p.m., St. Matthew's Methodist Church, 8617 Little River Tpk., Annandale. Free. 703-914-9414.
MOTHERS FIRST MEETINGS, a group supporting women who have altered their careers to raise children at home, Herndon Fortnightly Library, 10 a.m., 768 Center St., Herndon; Great Falls Library, 10 a.m., 9830A Georgetown Pike, Great Falls; Green Acres Elementary School, Room 116, 10:15 a.m., 4401 Sideburn Rd., Fairfax City. $1. 703-827-5922.
"ISRAEL TODAY" FILM, narrated by its filmmaker, Fran Reidelberger, 8 p.m., Alden Theatre, McLean Community Center, 1234 Ingleside Ave. $9; McLean residents, $7. 703-790-0123.
GEORGE WINSTON CONCERT, piano soloist, 8 p.m. Nov. 3 and 4, 7:30 p.m. Nov. 5, the Barns at Wolf Trap, 1635 Trap Rd., Vienna. $30. Tickets, 703-218-6500; information, 703-255-1860.
-- Compiled by JEAN MACK
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