What's Doing

BSO DECORATORS' SHOW HOUSE -- Friday 10 to 4, Saturday 10 to 4 and Sunday 1 to 4, tour the 29-room Guillford House, redecorated by 30 local designers, in this annual benefit for the Baltimore Symphony Orchestra. $15 in advance, $20 at door. Parking with shuttles at Church of the Redeemer, 5603 N. Charles St., Baltimore. 410-783-8000.

DESIGNERS' SHOWCASE -- Tour two dozen small rooms redecorated by local interior designers, through May 30. Open Fridays 10 to 3, Saturdays 10 to 5, Sundays 1 to 5, Tuesdays-Thursdays 10 to 3, and Thursdays and Fridays 6:30 to 9. $20. Center for Family Development, 7007 Bradley Blvd., Bethesda. 301-365-0612.

"WINGS OF FANCY" -- Watch live butterflies fly freely in a colorful garden. Open daily 10 to 4, through Sept. 19. $4, ages 3 to 12 $3. No strollers permitted. Brookside Gardens, 1800 Glenallan Ave., Wheaton. 301-962-1400.

ANTIQUES SHOW -- Friday 11 to 7, Saturday 11 to 7, Sunday 11 to 5, by Town & Country. $11. Marymount University, 2807 N. Glebe Rd., Arlington. 703-780-9200.

FLEA MARKET -- Saturday 8:30 to 12:30. Potomac Community Center, 11315 Falls Rd., Potomac. 301-983-4471.

FLEA MARKET -- Saturday 9 to 3. Nativity Catholic Church, 6008 Georgia Ave. NW. 202-726-6262.

FLEA MARKET -- Saturday 9 to 3. North Bethesda United Methodist Church, 10100 Old Georgetown Rd., Bethesda. 301-530-4342.

FLOWER AND GARDEN SHOW -- Saturday 9 to 5. Nursery and crafts fairs, food vendors, children's activities, hot air balloon rides. $3, under 18 free. Sponsored by Mountain Laurel Montessori School at Rappahannock Cellars, 14437 Hume Rd., Huntly, Va. 540-635-1056.

"D.C. BIG FLEA" -- Saturday 9 to 6, Sunday 11 to 5, a flea market with more than 600 booths. $5. Dulles Expo Center, Willard Road off Route 28, Chantilly. 703-378-0910.

SPRING FAIR -- Saturday 10 to 2. Broad Creek Child Development Program, 9801 Livingston Rd., Fort Washington. 301-248-6665.

STRAWBERRY FESTIVAL -- Saturday 10 to 4. Berry dishes and other foods, rummage sale, crafts fair, children's activities. Potomac United Methodist Church, 9908 S. Glen Rd., Potomac. 301-299-9383.

RENAISSANCE FESTIVAL -- Saturday 11 to 3. Roving performers, medieval crafts, combat demonstrations, food vendors, children's activities. Oak Chapel Academy, 14500 Layhill Rd., Silver Spring. 301-598-7249.

DEL RAY HOUSE AND GARDEN Tour, Saturday 11 to 5. Visit 14 homes in the Del Ray neighborhood of Alexandria. $20; purchase tickets at Del Ray Dreamery, 2308 Mount Vernon Ave., or Fireflies, 1501 Mount Vernon Ave. 703-683-2570.

BENEFIT GALA -- Saturday at 6:30. Dinner, entertainment, auction of goods and services. $175. Strathmore Hall Arts Center, 10701 Rockville Pike, North Bethesda. 301-530-0540.

BENEFIT CABARET -- Saturday 7 to 10 for the Washington Women's Chorus, with entertainment chorus members, silent auction of goods and services. $25, seniors and students $21. Stone Ridge School, 9101 Rockville Pike, Bethesda. 202-244-7367.

TORPEDO FACTORY ANNIVERSARY -- Saturday 7 to 11, celebrating the Torpedo Factory's 30th anniversary. Art displays, entertainment, open studios, food. $50. Torpedo Factory Art Center, 105 N. Union St., Alexandria. 703-838-4565.

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

JEWISH ARTS FESTIVAL -- Sunday noon to 3. Entertainment, crafts, food vendors. Temple Rodef Shalom, 2100 Westmoreland St., Falls Church. 703-323-0255.

STRAWBERRY FESTIVAL -- Sunday 1:30 to 5. Strawberry desserts and other foods, crafts fair, entertainment. Christ Church, 37497 Zach Fowler Rd., Chaptico. 301-884-3451.

BENEFIT GALA -- Wednesday at 6:30, with entertainment by actor David Hyde Pierce and playwright Wendy Wasserstein. $250, for the Lombardi Cancer Center. Mandarin Oriental Hotel, 1330 Maryland Ave. SW. 202-444-7228.

ASIAN PACIFIC AMERICAN Heritage Month Celebration, Thursday 10 to 5. Exhibits, entertainment, food vendors. Martin Luther King Library, 901 G St. NW. 2020727-0321 or 202-727-3120.