Bilu Club of Pioneer Women Arts and Crafts Show, 11 a.m.-4 p.m., Temple Israel, 420 University Blvd. East, Silver Spring. Details: 946-0542.

Cleveland Park House Tour, eight 19th-and turn-of-the-century homes, 1-5 p.m. Admission. Details: 966-2388.

Historic Garden Week in Virginia Leesburg Area Tour: Oak Hill, Oatlands Hamlet, Little Oatlands, Braddock House, Little Spring and Trowbridge House, 1-6 p.m. (10 a.m.-5 p.m. Monday). Admission. Information Center: Laurel Brigade Inn, 28 W. Market St. This Week

George Washington University M.F.A. Thesis Show: ceramics, graphics, painting, photography and design, 10 a.m.-5 p.m. weekdays, Dimock Gallery, 21st and H Sts. NW, through May 9. Details: 676-6460.

Miller's House Art Show, featuring the works of Sandra Landes, Rhea Locke and Aina Nammack, 10 a.m.-5 p.m. daily except Tuesdays, Colvin Run Mill park, Rte. 7 west of Tysons Corner. Details: 941-6066.

"Silverworks from Rio de la Plata," exhibit of antique Argentine silver, Tuesday-Friday, Organization of American States Gallery, through April 29. Details: 331-1010.

Wall hangings by Maria da Conceicao and drawings and watercolors by Lilli Byrum-Jensen, 10 a.m.-5 p.m. Wednesday-Sunday, Albatross Gallery, 1492 Washington St., Harpers Ferry, W. Va., through May 14. Details: 301-535-6637.

Antiques of the World, display and sale, 11 a.m.-9 p.m. Thursday-Saturday, Frederick Towne Mall, Frederick. Details: 301-662-9300.

Fifth Annual Greater Washington Glass Show & Sale, 11 a.m.-9 p.m. Friday, 11 a.m.-6 p.m. Saturday, Christ Episcopal Church, Clinton. Amission.

Quilters of America Unlimited Annual Exhibit, Friday-Sunday, The Athenaeum, 201 Prince St., Alexandria. Details and hours: 548-0035.

Federated Women's Club of Crofton fourth annual Arts & Crafts Fair, 10 a.m.-4 p.m. Saturday, on the Village Green, Crofton, Md. Details: 261-3481.

Spring Steam-Up Show: antique engine and car exhibits, craft demonstrations, farmers' bazaar, beginning 10 a.m. Saturday, noon next Sunday, Rose Hill Manor, N. Market St., Frederick. Details: 301-898-7480. Classes - Workshops

"Terrariums," nature program for children 8-12, 2 p.m. Saturday, Laurel Branch Library, 507 7th St., Laurel. Details: 776-6790.

Fiber workshops conducted by fiber artist Rich Mathews begin April. 30 at Fiber & Forum, 315 Cameron St., Alexandria. Tuition. Registration details: 683-6100.

"Nontraditional Metalwork," American Crafts Council spring workshop conducted by Marci Zelmanoff, 10 a.m.-4 p.m. Saturday or next Sunday, George Washington University. Tuition.Registration details: 232-6792.

Area artists and craftspeople wishing to exhibit and sell their work at the 2nd Green Spring Festival scheduled for Sunday, May 29, at Green Spring Farm Park, call 941-6066 for details.