Arlington National Cemetery
Memorial Drive, Arlington. 8 a.m.-5 p.m. Admission free. 703/607-8052.
Changing of the guard at the Tomb of the Unknowns. Starting at 8 a.m. every half-hour until 5 p.m.
Bureau of Engraving and Printing
14th and C streets SW. Visitors center 8:30 a.m.-7:30 p.m. Monday-Friday. Metro: Smithsonian. 202/874-2330.
U.S. paper-currency tours every 15 minutes 9 a.m.-2 p.m. Monday-Friday. Valid photo ID required. Bags not allowed on the tour. 866/874-2330.
Clara Barton National Historic Site
5801 Oxford Road, Glen Echo. Admission free. 10 a.m.-4 p.m. daily. Tours on the hour, starting at 10 a.m. 301/492-6245.
The 1997 discovery of Clara Barton’s 1861-1868 Office to Locate Missing Soldiers.
Department of the Treasury
15th Street and Pennsylvania Avenue NW. 202/622-0896.
Tours suspended until further notice.
10th and E streets NW. 202/324-3447.
Tours suspended until further notice.
Hillwood Museum and Gardens
4155 Linnean Ave. NW. Reservations required. 202/686-5807.
South bank of the Tidal Basin. 202/426-6841. Open 8 a.m.-midnight. Metro: Smithsonian.
Museum exhibits 9 a.m.-5 p.m. daily.
F Street and New Hampshire Avenue NW. 202/416-8340.
Tours 10 a.m.-5 p.m. Monday-Friday; 10 a.m.-1 p.m. Saturday, Sunday. Free.
Constitution Avenue and 23rd Street NW. 8 a.m.-midnight daily. Metro: Foggy Bottom. 202/426-6841.
Museum exhibits 9 a.m.-5 p.m. daily.
James Madison’s home and burial place on Route 20, four miles south of Orange, Va. 9:30 a.m.-5 p.m. daily for tours. Admission $3.50-$7.50. 540/672-2728.
George and Martha Washington’s home and burial place at the south end of the George Washington Memorial Parkway. 9 a.m.-4 p.m. daily. $5-$11. 703/780-2000.
Pennsylvania Avenue between Seventh and Ninth streets NW. 10 a.m.-5:30 p.m. daily except holidays. Metro: Archives-Navy Memorial. 202/501-5000.
Museum housing the Declaration of Independence, the Bill of Rights and the U.S. Constitution reopens to the public.
National World War II Memorial
17th Street between Constitution and Independence avenues. 9:30 a.m.-8 p.m. daily. 800/639-4WW2.
9000 Richmond Highway, south of Alexandria. 10 a.m.-5 p.m. daily. 703/780-4000, Ext. 27.
Limited group tours available. Public tours suspended until further notice. 703/695-3325.
Franklin D. Roosevelt Memorial
West Basin Drive. Metro: Smithsonian. 8 a.m.-midnight daily. 202/426-6841.
Site explores the legacy of the 32nd U.S. president 9 a.m.-5 p.m.
Old Town Trolley’s two-hour day tours make 18 stops around town, including the White House, the Capitol and Arlington National Cemetery. Tours begin 9 a.m. daily. $24 adults, $12 children. Evening tours also available. 202/832-9800.
First Street and Constitution Avenue NW. 9 a.m.-4:30 p.m. Monday-Saturday. 202/225-6827.
Tours available 9:30 a.m.-3:30 p.m. Free timed tickets can be obtained at 8:15 a.m. on the day of tour at the West Front of the Capitol.
Exterior walking tours by the U.S. Capitol Historical Society. 10 a.m. Monday. Meet at the Massachusetts Avenue exit of the Union Station Metro stop. $10. 202/543-8919, Ext. 17.
U.S. Supreme Court
1 First St. NE. Open 9 a.m.-4:30 p.m. Monday-Friday. 202/479-3030.
Public lectures in the courtroom every half-hour 9:30 a.m.-3:30 p.m. when the court is not hearing arguments. Public seating for arguments when the court is in session is on a first-come, first-served basis on the day the court meets. Call ahead to confirm court meeting location.
Vietnam and Korean Veterans’ War memorials
Bacon Drive and Constitution Avenue NW, and French Drive SW. 8 a.m.-midnight. Metro: Foggy Bottom. 202/426-6841.
16th Street and Constitution Avenue NW. 202/619-PARK. Grounds open 8 a.m.-midnight; 9 a.m.-5 p.m. for monument tours. Tickets issued on first-come, first-served basis. 800/967-2283.
Washington National Cathedral
Massachusetts and Wisconsin avenues NW. 202/537-6200.
10 a.m.-5 p.m. daily; 10 a.m.-4:30 p.m. Saturday. Docent-guided tours 10 a.m.-3:15 p.m. Monday-Saturday; 12:30 p.m.-2:45 p.m. Sunday. No tours on holidays. $3 adults, $1 children donation.
Tea tours 1:30 p.m. Tuesday, Wednesday. Call for reservations and fee. 202/537-8993.
The White House
1600 Pennsylvania Ave. NW. 202/456-7041 or 202/456-2322.
Public tours are available Tuesday through Saturday if they are arranged with a congressman’s office and if the group has at least 10 persons.
White House Visitor Center
1450 Pennsylvania Ave. NW. 202/208-1631.
Open 7:30 a.m.-4 p.m. daily.
Gadsby’s Tavern Museum
134 N. Royal St., Alexandria. 703/838-4242.
Candlelight tours of Gadsby Tavern and City Hotel. Fridays through November. 7-10 p.m. $2-$5.
Weekly walks in Foggy Bottom, Georgetown, Lafayette Square, other neighborhoods. Call for schedule. Most tours $5-$10. 202/484-1565 or www.washingtonwalks.com
1426 N. Quincy St., Arlington. Showtimes 7:30 p.m. Friday and Saturday; 1:30 and 3 p.m. Sunday unless otherwise noted. $1.50-$2.50. 703/228-6070.
The Audubon Naturalist Society holds free weekend walking tours. 301/652-9188.
Druid Hill Park, one mile off Interstate 83 (Exit 7), Baltimore. 410/366-LION. 10 a.m.-4 p.m. daily. $11 adults, $9 seniors, $7 children 2-11, free for children younger than 2. 10 a.m.-noon the first Tuesday of each month (with paying adult).
Green Spring Gardens Park
4603 Green Spring Road, west of Alexandria. 703/642-5173.
Horticulture Center. 9 a.m.-4:30 p.m. Monday-Saturday; noon-4:30 p.m. Sunday.
Department of Commerce, 14th Street and Constitution Avenue NW. 9 a.m.-5 p.m. daily. Last admission 4:30 p.m. $3. Discounts for children, seniors. 202/482-2825.
Shark feedings 2 p.m. Monday, Wednesday and Saturday.
Piranha feedings 2 p.m. Tuesday, Thursday and Sunday.
National Aquarium in Baltimore
501 E. Pratt St., Pier 3 at the Inner Harbor, Baltimore. 9 a.m.-8 p.m. Sunday-Thursday; 9 a.m.-10 p.m. Friday, Saturday. $9.50-$17.50. 410/576-3800 or 410/727-FISH.
“Coastal Connections: Dolphins at Our Shores.” High-tech graphics and natural behaviors demonstrate the mammals’ abilities. Call for times.
3501 New York Ave. NE. Grounds open 8 a.m.-5 p.m. daily. 202/245-5898.
Full moon hike. 8-10 p.m. June 3-4. $10.
Early bird tour. 7-8:30 a.m. June 5. $10.
Bonsai demonstration. 1-2:30 p.m. June 5. Free.
Visiting Bonsai exhibition and demonstration. 10 a.m.-3:30 p.m. June 5-13. Free.
National Zoological Park
3001 Connecticut Ave. NW. Grounds open 6 a.m.-8 p.m.; buildings open 10 a.m.-6 p.m. daily. 202/673-4800.
“The Gathering.” Chimpanzee sculptures by Bart Walter. On permanent display.
Panda exhibit open to the public. 9 a.m.-4:30 p.m. daily.
Sea lion training and elephant care session. 11:30 a.m. most days.
The Amazonia Science Gallery depicts a living river system, a rain forest and field-research exhibits. A biological-diversity study center has a scanning electron microscope and a collection of live insects and amphibians.
Tudor Place Historic House and Garden
1644 31st St. NW. 202/337-5815.
House and garden tours available Sunday afternoons and all day Tuesday-Saturday. $3-$6.
U.S. Botanic Gardens
100 Maryland Ave. SW. Open 10 a.m.-5 p.m. daily. 202/225-8333.
“How Plants Work — A Guide to Being Green.” Permanent exhibit.
“Plants in Print: The Age of Botanical Discovery.” Through July 15.
“Seeds of Our Future: USDA Plant Hunters.” Through July 18.
In the 1960s, conceptual artist Sol LeWitt developed the idea that a work of art could be conceived by an artist and made according to the artist’s instructions. Now his , executed by a team of assistants last week, will open tomorrow on the concourse level of the National Gallery of Art. Vanguard collectors Dorothy and Herbert Vogel donated the “work” in 1971 to the Gallery; later it was loaned to the Guggenheim Museum, the Washington Convention Center and the Hirshhorn Museum and Sculpture Garden. The Gallery wall, made especially for the “Wall Drawing,” measures 27 feet by 16 feet, 2 inches. At the National Gallery, Fourth Street and Constitution Avenue NW. 10 a.m. to 5 p.m. Monday through Saturday, 11 a.m. to 6 p.m. Sunday. Free. 202/ 737-4215.
The National Archives commemorates the Memorial Day weekend with a salute to World Warr II veterans, augmented by showings of notable documentary films from the period. The selections include John Huston’s The Battle of San Pietro, John Ford’s The Battle of Midway, William Wyler’s Memphis Belle and two installments of Frank Capra’s “Why We Fight” series, The Negro Soldier and War Comes to America. The entire program, shown over a video projection system, will run about seven hours. Admission is free and the screenings start at 10:30 a.m. tomorrow through Sunday. Jefferson Room of the National Archives Building, Constitution Avenue between 7th and 9th streets NW. 202/501-5000.
— Gary Arnold
LeWitt’s “Wall Drawing #65” can be seen at the National Gallery of Art starting tomorrow.