Friday, October 9, 1998; Page N73

NSO SHOW HOUSE -- Open Friday 10 to 3, Saturday and Sunday noon to 5, Monday-Wednesday 10 to 3, Thursday 10 to 7, through Nov. 1. Visit Edes House, the 1998 National Symphony Orchestra Decorators' Show House, a recently renovated Colonial Revival mansion in which more than 30 local interior and landscape designers are displaying their talents. No children under 8, no spike heels, no cameras. $15 in advance, $20 at the door. At 2929 N St. NW; discount parking and free shuttle buses are available at the Kennedy Center garage. To order tickets, 202/467-4600; for information, 202/416-8149.

OKTOBERFEST -- Friday and Saturday 10 to 9. Crafts fair, food vendors, children's activities. St. John's Parish, 271 Winchester St., Warrenton, Va. 540/347-2922.

ANTIQUES FAIR -- Friday noon to 8, Saturday noon to 7, Sunday noon to 5:30. About 170 dealers. $6, under 15 free. D.C. Armory, 2001 East Capitol St. SE. 202/547-9215 or 301/924-5002.

ANTIQUES FAIR -- Friday noon to 9, Saturday 11 to 6, Sunday noon to 5. Vienna Community Center, 120 Cherry St. SE, Vienna. 703/255-6360.

GUINNESS OYSTER FESTIVAL -- Friday 2 to 9, Saturday noon to 9. Entertainment, oyster vendors. Sponsored by the Fell's Point Business Association at Market Square, at Broadway and Thames Street in the Fells Point neighborhood of Baltimore. 410/675-6297.

"FEAR FEST '98" -- Friday and Saturday from dusk to midnight, through Oct. 31. Haunted trail, "maniac maze," games, entertainment. $6, under 5 free. Virginia Renaissance Fairgrounds, 1175 Kings Hwy., Fredericksburg, Va. 540/371-3999.

USED BOOK SALE -- Saturday 9 to 1. Potomac Library, 10101 Glenolden Dr., Potomac. 301/983-4475.

STAMP FAIR -- Saturday 9:30 to 5. About 25 dealers. Holiday Inn, 3400 Fort Meade Rd., Laurel. 301/498-0900.

W&OD TRAIL SAFETY EXPO -- Saturday 10 to 2. Safety tips for cyclists, walkers, joggers, horse riders and skaters. On the Washington & Old Dominion Railroad Park Trail at Station Street, Herndon. 703/729-0596.

FALL FESTIVAL -- Saturday 10 to 3. Music, crafts fair, exhibits, hayrides, children's activities. Signal Hill Park, 9300 Signal View Dr., Manassas Park. 703/335-8872.

FIRE HOUSE OPEN HOUSE -- Saturday 10 to 4. Safety talks, firefighter and rescue demonstrations, equipment displays, children's activities. Fair Oaks Volunteer Fire and Rescue Company, 12300 Lee-Jackson Memorial Hwy., Fairfax. 703/591-6587.

"MIDDLEWAY DAY" -- Saturday 10 to 4. Entertainment, living history portrayals, crafts fair, children's activities, walking tours. Outdoors in downtown Middleway, W. Va. 304/728-3821.

GERMANTOWN OKTOBERFEST -- Saturday 10 to 4. Traditional music and folk dancing, food vendors, children's activities. Outdoors at Route 118 and Aircraft Drive, Germantown. 301/217-6798.

"FESTIVAL ON THE HILL" -- Saturday 10 to 5. Music, food vendors, children's activities, exhibition chess matches with chess master Charles Covington. Outdoors in the 1300 block of Bolton Street in the Bolton Hill neighborhood of Baltimore. 410/669-0220.

FAIRFAX CITY FALL FESTIVAL -- Saturday 10 to 5. Entertainment, crafts fair, children's activities, food vendors. Outdoors in downtown Fairfax City, along Main, South and Armstrong streets, University Drive and Sager Avenue. Satellite parking with shuttle buses at Fairfax High School, George Mason University and Woodson High School. 703/385-7858.

ANTIQUE AND COLLECTIBLE Show, Saturday 10 to 5, Sunday 10 to 4. Appearances by actors Bernard Fox, Jay North and Jeannie Russell. $5. Montgomery County Fairgrounds, Route 355 at Perry Parkway, Gaithersburg. 301/216-0876.

"PATUXENT RIVER APPRECIATION Days," Saturday and Sunday 10 to 5. Music, exhibits, crafts fair, harbor cruises, food vendors; parade Sunday at 2. Calvert Marine Museum, 14200 Solomons Rd., Solomons, Md. 410/326-2042.

GRAND MILITIA MUSTER -- Saturday and Sunday 10 to 5. Drills, demonstrations and living history portrayals by 17th-century military reenactment units. $7.50, seniors and ages 13 to 18 $6, ages 6 to 12 $3.50. Historic St. Mary's City, Rosecroft Road, St. Mary's City, Md. 301/862-0990 or 800/762-1634.

ORCHID SHOW -- Saturday 10 to 5, Sunday 10 to 5 and Monday 10 to 3, by the National Capital Orchid Society. Displays of orchids in bloom, gardening workshops, art exhibits, plant sales. National Arboretum, 3501 New York Ave. NE. 202/245-2726.

HEALTH AND SAFETY EXPO -- Saturday 10 to 6, Sunday noon to 6. Health screenings, fitness demonstrations, bicycle safety rodeo, exhibits. White Flint Mall, 11301 Rockville Pike, North Bethesda. 301/468-5777.

CRAFTS FAIR -- Saturday and Sunday 10 to 6. About 40 exhibitors. Academy of the Arts, 106 South St., Easton. 410/822-0455.

MARYLAND RENAISSANCE FESTIVAL -- Saturdays and Sundays 10:30 to 7, through Oct. 25. Concerts, living history portrayals, jousting, crafts displays, food vendors. $13.95, seniors $12, ages 7 through 15 $4.95, younger free). On Crownsville road off Route 450, Crownsville. 800/296-7304 or 410/266-7304.

"SALUTE THE SQUARE" -- Saturday 11 to 4, visit Decatur House, the Treasury Department, the White House Historical Association and other historic sites around Lafayette Square, accompanied by actors portraying Alice Roosevelt, Dolly Madison and other figures. Lafayette Square is at 16th and H streets NW. 202/842-0920.

"HASTINGS MEDIEVAL FAIRE" -- Saturday and Sunday 11 to 5. Saxon and Norman living history camps, musicians, vendors; battle reenactments at 1 and 3. $4, ages 5 to 18 $2. Marietta House Museum, 5626 Bell Station Rd., Glenn Dale. 301/464-5291.

POLICE AWARENESS DAY -- Sunday noon to 4. Demonstrations and exhibits by police and other public safety agencies, crafts fair, hayrides, pony rides, moon bounce. Woodlawn Manor Park, 16501 Norwood Rd., Sandy Spring. 301/929-2701.

CYPRIOT FESTIVAL -- Saturday noon to 6. Traditional music, folk dancing, exhibits, crafts fair, food vendors. Waterfront Park, 1 Prince St., Alexandria. 703/883-4686.

BEANIE BABY SHOW -- Sunday 10 to 3. $4. Days Hotel, 9615 Deereco Rd., Timonium. 301/292-4587.

ART FAIR -- Sunday noon to 4, by the Montgomery County Art Association and the Rockville Art League. Great Falls Tavern Museum, C&O Canal National Historic Park, 11710 MacArthur Blvd., Potomac. 301/593-8305.

OKTOBERFEST -- Sunday 1 to 5. Traditional music, folk dancing, children's activities, food vendors. Kentlands Mansion, 320 Kent Square Rd., Gaithersburg. 301/948-4290 or 301/258-6350.

COLUMBUS DAY PARADE -- Sunday at 2. Marching bands, costumed groups. In Baltimore's Inner Harbor, west along Key Highway from Covington Street to Light Street, north to Pratt Street, east to President Street. 410/837-4636 or 800/282-6632.

BENEFIT WINE-TASTING -- Sunday at 4, for Washington Women's Chorus. $45. River Road Unitarian Church, 6301 River Rd., Bethesda. 301/654-5635.

COLUMBUS DAY CEREMONY -- Monday at 11. Music, remarks, wreath presentation. Columbus Plaza, Union Station, 50 Massachusetts Ave. NE. 202/629-7222.

LIVING HISTORY PORTRAYALS of George Washington and White House architect James Hoban, Tuesday at 9:30, 11:30 and 1:30, commemorating the 206th anniversary of the laying of the White House cornerstone. White House Visitor Center, 1450 Pennsylvania Ave. NW. 202/208-1631.

"THE GREAT MATCH" -- Wednesday at 7, sample Spanish wines and dishes prepared by six local chefs. $50. Organization of American States, 18th and Constitution NW. 800/317-9463.

Bazaars/Flea Markets

MEADOWS BAPTIST Church, Saturday 8 to 3. 17214 Queen Anne Rd., Upper Marlboro. 301/249-9761.

UNITARIAN CHURCH of Arlington, Friday 3 to 8, Saturday 9 to 3, Sunday 1 to 3. 4444 Arlington Blvd., Arlington. 703/892-2565.

HUGHES UNITED METHODIST Church, Saturday 9 to 3. 10700 Georgia Ave,. Wheaton. 301/949-8383.

NOTTOWAY PARK -- Saturday 9 to 5. 9601 Courthouse Rd., Vienna. 703/938-7532.

OUR LADY OF MATTAPONI Conference Center, Saturday 10 to 4, Sunday 11 to 4. 11000 Mattaponi Rd., Upper Marlboro. 301/952-9074.