What's Doing

What's Doing

STOCK CERTIFICATE & BOND SHOW Friday 9 to 6, Saturday 9 to 4, with more than 65 tables of antique stocks and other financial documents, postcards, Civil War artifacts and more. Crowne Plaza Hotel -- Dulles Airport, 2200 Centreville Rd., Herndon. 800-225-6233.

SUGARLOAF CRAFTS FESTIVAL Friday 10 to 6, Saturday 9 to 6, Sunday 10 to 5, with 3500 artisans, demonstrations and entertainment. Dulles Expo Center, 4368 Chantilly Center, Chantilly. 703-802-0066 or 800-210-9900.

WASHINGTON AUTO SHOW Friday-Saturday 10 to 9, Sunday 10 to 6. Washington Convention Center, 801 Mount Vernon Pl. NW. 866-927-4288, 202-237-7200 or 202-249-3400.

BALTIMORE BOAT SHOW Friday noon to 9, Saturday 11 to 8, Sunday 11 to 5. Baltimore Convention Center, 1 W. Pratt St., Baltimore. 410-649-7000.

2007 CHINESE NEW YEAR SPECTACULAR Friday at 12:30 and 8, Saturday at 2 and 8. Music and dance performances by New Tang Dynasty TV. Lisner Auditorium, 730 21st St. NW. 202-994-6800 or 202-397-7328.

FLEA MARKET Saturday 9 to 2. College Park United Methodist Church, 9601 Rhode Island Ave., College Park. 301-474-7874.

ESTATE SALE Saturday 10 to 5. Furniture and household items to raise funds for the museum's education programs. Claude Moore Colonial Farm, 6310 Georgetown Pike, McLean. 703-442-7557.

DC TRANSIT DAY Saturday-Sunday noon to 5, marking the 45th anniversary of the end of streetcars in the city with screenings of "Raleigh D'Adamo's Washington Streetcar Films" and rides on a vintage streetcar. National Capital Trolley Museum, 1313 Bonifant Rd., Colesville. 301-384-6088.

POLAR BEAR PLUNGE Saturday at 2; registration begins at 9 a.m. The 11th annual fundraiser for Special Olympics Maryland is sponsored by the Maryland State Police. Sandy Point State Park, 1100 E. College Pkwy., Annapolis. 410-789-6677.

HEARTFEST 2007 Saturday at 7:30, in a benefit for the Johns Hopkins Ciccarone Preventive Cardiology Center, hosted by actor John Astin with music by Stevie V. & the Heart Attackers. $100. Martin's West, 6817 Dogwood Rd., Baltimore. 410-560-2230.