What's Doing

LIVE BUTTERFLY SHOW -- Open daily from 10 to 4, through Sept. 18. Butterflies fly freely in an indoor garden of nectar plants. $4.50, ages 3 to 12 $3.50. Brookside Gardens, 1800 Glenallan Ave., Wheaton. 301-962-1400.

RUMMAGE SALE -- Saturday 9 to 2. Emmanuel Episcopal Church, 1608 Russell Rd., Alexandria. 703-683-0798.

CIVIL WAR ENCAMPMENT -- Saturday and Sunday 10 to 3. Living history portrayals by Union and Confederate reenactors, artillery and infantry demonstrations; campfire program Saturday at 5:30. Monocacy National Battlefield, 4801 Urbana Pike, Frederick. 301-662-3515.

CIVIL WAR ENCAMPMENT -- Saturday 10 to 4, Sunday 8 to 1. Living history portrayals, period fashion shows, manor tours. $5 per vehicle. Rose Hill Manor Park, 1611 N. Market St,. Frederick. 301-694-1650.

"RESTON FESTIVAL" -- Saturday 10 to 10, Sunday 10 to 7. Entertainment by Chuck Brown, Dervish, the Austin Lounge Lizards and others; crafts fair; food vendors; children's activities. Reston Town Center, Reston Parkway and Freedom Drive, Reston. 703-435-7989.

"MARVIN GAYE APPRECIATION Day" -- Saturday noon to 9, with entertainment by William DeVaughn, Lady Adams, Jay Boogie and others. Watts Branch Recreation Center, 61st and Dix streets NE. 301-322-6827 or 301-412-4168.

"DC NIGHT BAZAAR" -- Saturday 1 to 11, arts and crafts by about 50 vendors, live music by Monopolis. Marie Reed School plaza, 18th and Wyoming NW. 202-299-7358.

"POTOMAC JAZZ AND SEAFOOD Festival" -- Saturday 4 to 10. Music by Liz Briones, Ron Holloway and Marcus Johnson. $30 in advance, $35 at the gate, under 12 free. St. Clement's Island-Potomac River Museum, 38370 Point Breeze Rd., Colton's Point, Md. 301-769-2222.

DAYLILY PLANT SHOW -- Sunday 1:30 to 5:30, by the National Capital Daylily Club. Brookside Gardens Visitor Center, 1800 Glenallan Ave., Wheaton. 202-342-0134 or 301-260-0498.

"SUNSET PARADE" -- Tuesdays at 7, through Aug. 16. The Marine Drum & Bugle Corps, Silent Drill Team and marching units stage a colorful full-dress parade at the U.S. Marine Corps War Memorial (Iwo Jima Memorial), on U.S. 50 adjacent to Arlington National Cemetery. 202-433-6060.