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.

MONTGOMERY COUNTY Agricultural Fair -- Friday and Saturday 10 a.m. to midnight (last entry at 11 p.m.) Livestock displays, agricultural exhibits, concerts, rides, games and other entertainment. $7, ages 7 and younger free. Montgomery County Fairground, Route 355 and Perry Parkway, Gaithersburg. Call 301-926-3100.

GERMAN FESTIVAL -- Friday noon to 10, Saturday noon to 10, Sunday noon to 9. Traditional entertainment, crafts, foods. Carroll Park, Washington Boulevard and Monroe Street, Baltimore. 410-522-4144.

PRINCE WILLIAM COUNTY FAIR -- Friday 3 to midnight, Saturday noon to midnight. Agricultural and livestock exhibits; midway rides and games; entertainment. $15, seniors and ages 3 to 6 $7, younger free. Prince William County Fairground, on Dumfries Road off Route 234, Manassas. 703-368-0173.

"COMCAST OUTDOOR FILM Festival" -- Friday through Sunday at 8:30, free feature films will be shown on an outdoor screen: "Ray," Friday; "Spider-Man 2," Saturday; "Shark Tale," Sunday. The Music Center at Strathmore, 5301 Tuckerman Lane, North Bethesda. 301-816-6958 or 301-581-5100.

OLD DOMINION DRAFT HORSE, Mule, Donkey, Halfbreed and Draft Pony Show, Saturday starting at 9. Competitions in riding, driving and in-hand classes for all breeds. $5, seniors and ages 6 to 15 $3. Horseshow Grounds, 60 E. Shirley Ave., Warrenton. 703-753-3291.

MODEL SOLDIER SHOW -- Saturday 10 to 5, Sunday 9 to 2, by the National Capital Model Soldier Society. Displays by U.S. and foreign artists and plastic modelers, more than 130 vendor tables. $7, younger than 12 free. Northern Virginia Community College, 8333 Little River Tnpk., Anndandale. 703-938-6361.

"STARLIGHT CINEMA" -- Saturdays at 7:30 through August, free outdoor screenngs of feature films. Saturday: "Shrek 2." Watch from car or sit outside. Trinity Building parking lot, 5875 Trinity Pkwy., Centreville. 703-324-7469.

BASEBALL AND SPORTS CARD Show, Sunday 10 to 4. $3. Tysons Corner Holiday Inn, 1960 Chain Bridge Rd., McLean. 301-990-4929.

BENEFIT GOSPEL CELEBRATION -- Monday at 7, with cast members of "The Lion King," local college and church choirs and community dance troupes. $45, seniors $30, students and children $20. Proceeds benefit historically black colleges and Broadway Cares/Equity Fights AIDS. James Weldon Johnson Auditorium, Coppin State University, 2500 W. North Ave., Baltimore. 410-951-3400 or 410-951-3932.

"BREW AT THE ZOO" -- Thursday at 6, beer-tasting of products from 25 breweries, snacks from local restaurants, live music. $35 in advance, $45 at gate. Sponsored by Friends of the National Zoo to benefit the Asian Elephant Conservation Program. National Zoo, 3001 Connecticut Ave. NW. 202-633-3026.