What's DoingHUNT VALLEY ANTIQUES SHOW -- Friday 11 to 8, Saturday 11 to 7, Sunday 11 to 5. Displays by 56 dealers. $12. Hunt Valley Inn, Shawan Road at I-83, Hunt Valley. 410-366-1980 or 410-961-5121.

ANTIQUES SHOW -- Friday noon to 8, Saturday 11 to 6, Sunday noon to 5. $4.50. Vienna Community Center, 120 Cherry St. SE, Vienna. 703-255-6360.

FLEA MARKET -- Saturday 9 to 2. About 40 vendors. Good Luck Community Center, 8601 Good Luck Rd., Lanham. 301-552-1093.

CRAFTS FAIR -- Saturday 9 to 3. About 70 exhibitors. St. Timothy School, 13809 Poplar Tree Rd., Chantilly. 703-803-0460 or 703-222-3823.

DOLL AND BEAR SHOW -- Saturday 10 to 4. $4. Holiday Inn, 2460 Eisenhower Ave., Alexandria. 703-683-2807.

ANTIQUES SHOW -- Saturday 11 to 6, Sunday 11 to 4. $6. Holy Redeemer Church, 9705 Summit Ave., Kensington. 301-530-3605.

MULTICULTURAL FAIR -- Saturday noon to 4. Entertainment, international foods, exhibits, children's activities. Quince Orchard High School, 15800 Quince Orchard Rd., Gaithersburg. 301-330-8991.

"ROCK 'N' SPORTS EXPERIENCE" -- Saturday 11 to 8, Sunday noon to 5. Interactive sports activities, virtual reality games, climbing wall, mechanical bull riding, live entertainment, exhibits, visits by professional athletes. $10, under 6 free. Washington Convention Center, 900 Ninth St. NW. 202-789-1600.

"MONSTER JAM" -- Saturday at 2 and 8, Sunday at 2. Competitions and feats of daring by Grave Digger, Black Stallion and other customized monster trucks. $20 in advance, $22 at gate. First Mariner Arena, 201 W. Baltimore St., Baltimore. 202-432-7328, 410-481-7328 or 410-347-2010.

WOLF TRAP MARDI GRAS GALA -- Saturday at 7. Buffet dinner, open bar, dancing; music by Gonzo's Nose. Sponsored by Wolf Trap Young Associates to benefit the Wolf Trap Institute for Early Learning Through the Arts. $95. Clarendon Ballroom, 3185 Wilson Blvd., Arlington. 703-255-1941.

"WIRELESS WINTERFEST" -- Sunday 8 to 3. Amateur radio demonstrations and displays by the Vienna Wireless Society. Northern Virginia Community College, 8333 Little River Tnpk., Annandale. 703-971-4812.

SPORTS CARD/COLLECTIBLE Show, Sunday 10 to 4. About 50 dealers. $3. DoubleTree Hotel, 7801 Leesburg Pike, Falls Church. 301-990-4929.