What's DoingORIENTAL CARPET FAIR -- Friday 10 to 9, Saturday 10 to 6 and 9 p.m. to 11 p.m., and Sunday noon to 9, during the 10th Conference on Oriental Carpets. Omni Shoreham Hotel, 2500 Calvert St. NW. 202-234-0700.

BENEFIT WEDDING GOWN SALE -- Friday noon to 8, Saturday 10 to 6. Sales of donated gowns, to benefit the Making Memories Breast Cancer Foundation. The Ballroom, 5521 Landy Lane, Bethesda. 703-264-0136.

USED BOOK SALE -- Saturday 9 to 2. Aspen Hill Library, 4407 Aspen Hill Rd., Rockville. 301-871-2094.

LEESBURG HOUSE & GARDEN Tour, Sunday 1 to 5 and Monday 10 to 5. Visit five historic homes and their gardens in the Carolina Road area of Leesburg. Sponsored by the Leesburg and Fauquier garden clubs. $30; purchase tickets at Loudoun Convention and Visitors Association, 222 Catoctin Circle SE, Leesburg. 800-752-6118.

FREDERICKSBURG HOUSE & GARDEN Tour, Tuesday 10 to 2. Visit four historic homes and a church in the Fredericksburg area. Sponsored by the Rappahannock Valley Garden Club. $20; purchase tickets at Fredericksburg Visitor Center, 706 Caroline St., Fredericksburg. 540-373-1776 or 800-678-4748.

"TWILIGHT TATTOO 2003" -- Wednesdays at 7 through July 30, a traditional sunset military pageant with members of the 3rd U.S. Infantry, the U.S. Army Band, the Army Fife & Drum Corps and the U.S. Army Drill Team. Free. On the Ellipse, near 15th and Constitution NW. 202-685-2888.

SMITHSONIAN CRAFT SHOW -- Thursday 11 to 7, and through April 27. Exhibition by about 120 artists and artisans selected from 1200 applicants. $12, under 12 free. National Building Museum, 401 F St. NW. 202-357-4000.

BALTIMORE WATERFRONT FESTIVAL -- Thursday 11 to 7, and through April 27. Yacht races, boat rides, entertainment, seafood vendors, children's activities. At the West Shore and Rash Field in Baltimore's Inner Harbor. 877-225-8466.

BETHESDA LITERARY FESTIVAL -- Thursday 11 to 7:30, and through April 27. Readings, talks and other literary events at sites throughout downtown Bethesda. 301-215-6660 or www.bethesda.org

FLEA MARKET -- Thursday noon to 8, and through April 26. Shrine of St. Jude Church, 12701 Veirs Mill Rd., Rockville. 301-946-8200.