Laurel Hill Mansion East Fairmount Park; 215-235-1776. www.fairmountpark.org/LaurelHill.asp. Georgian-style mansion built in 1767 by Rebecca Rawle. $5; $3 seniors; $2 children 6-12. Open 10 am-4 pm weekends.

*FREE* Liberty Bell Center 501 Market St.; 215-965-2305. www.nps.gov/inde. Home of the Liberty Bell & exhibits on its origins & role as symbol of freedom. Daily 9 am-5 pm.

Lights of Liberty Show 6th & Chestnut Sts.; 215-629-4026. www.historicphiladelphia.org. Outdoor, nighttime sound & light spectacular with surround sound & images projected on historic buildings telling the story of struggle for independence. Thu.-Sat. beginning at dusk. $19.50; $16.50 seniors & students; $13 children 12 & under. Ben Franklin's Ghost appears as a dramatic, life-size holographic image who answers questions about his life in this interactive exhibit. Exhibit free. Sun.-Mon. 10 am-7 pm; Tue.-Sat. 10 am-11 pm.

Masonic Temple One North Broad St.; 215-988-1900. www.pagrandlodge.org. Built in 1873, this National Historic Landmark is a magnificent example of architecture, art & history. Tours: Tue.-Fri. 11 am, 2 & 3 pm; Sat. 10 am & 11 am. Masonic Temple Library - Esteemed collection for the study of American History & Freemasonry, featuring over 75,000 volumes & 30,000 documents, prints, photos & manuscripts. $8, with individual & group discounts available. Tue.-Fri. 10 am-5 pm; Sat. 10 am-noon.

Morris Arboretum of the University of Pennsylvania 100 E. Northwestern Ave.; 215-247-5777. www.morrisarboretum.org. Arpeggio Jazz Ensemble - Fusion of jazz, African, Brazilian, rhythm & blues & hip-hop music. $30. 7/16 7-8:30 pm. The Summer Palace - Newly created, original sculpture by Patrick Dougherty, now on display in the Madeleine K. Butcher Sculpture Garden. On display for approx. one year, or as long as it lasts in the natural elements. Andrea Baldeck: The Texture of Trees - Photo exhibit shows how trees provide vital richness & texture in our lives. Closes 9/30. Garden Railway: Great American Lighthouses - Extensive model train layout w/a lighthouse theme. Closes 10/13. Out on a Limb: A Tree Adventure - New, outdoor exhibit featuring breathtaking, bird's eye views of the forest. Ongoing. $14; $12 seniors; $7 students & youth 3-17; free for children under 3. Daily 10 am-4 pm.

The Mutter Museum 19 S. 22nd St.; 215-563-3737. www.collphyphil.org. Over 200 wet & dry specimens, lantern slides, x-rays & more. $12; $8 seniors, students, children 6-17; free for children under 6. Open daily 10 am-5 pm; until 9 pm Fri.

National Constitution Center 525 Arch St.; 215-409-6600. www.constitutioncenter.org. 1787 copy on display plus more than 100 interactive exhibits, Signer's Hall, The Story of We the People (Multimedia presentation featuring live actor, film & video projection, family-oriented exhibits) & more. Bastille Day - The NCC will offer various programming exploring the American & French Revolutions. Included in admission. 7/11-7/14 11 am-3 pm. Napoleon - Over 300 items from Napoleon's life & times, including fine art, documents & furniture. Closes 9/7. $17.50; $16.50 seniors; $13.50 children 4-12; free for active military & children under 4. Regular admission: $12; $11 seniors; $8 children 4-12; free for children under 4 & military (audio tour $3). Mon.-Fri. 9:30 am-5 pm; Sat. 9:30 am-6 pm; Sun. noon-5 pm.

National Liberty Museum 321 Chestnut St.; 215-925-2800. www.libertymuseum.org. Featured exhibits include Coming to America; Award-winning Dale Chihuly glass sculptures; From Conflict to Harmony; Heroes From Around the World; Exceptional People. Sergey Bunkov - Israeli artist Sergey Bunkov's figurative works explore the dynamic tensions of opposites. Closes 7/10. Densaburo Oku - Glass artist from Japan. Opening 7/16 6 pm. Closes 8/16. $7; $6 seniors; $5 students; $2 children 5-7; free for children under 5 & for all on Sun. Self guided tours only. Tue.-Sun. 10 am-5 pm.

*FREE* National Museum of American Jewish History 55 N. 5th St.; 215-923-3811. www.nmajh.org. Shaping Space, Making Meaning - New exhibit offers an inside look at the museum's upcoming 2010 exhibition. Features design sketches, computer-generated images, video & text. Ongoing. Mon.-Thu. 10 am-5 pm; Fri. 10 am-3 pm; Sun. noon-5 pm.

The Philadelphia Zoo 3400 W. Girard Ave.; 215-243-1100. www.philadelphiazoo.org. Ongoing exhibits & attractions include the popular PECO Primate Reserve, Rare Animal Conservation Center, Bank of America Big Cat Falls, Children's Zoo & more. Secret Agent 23 Skidoo - Positive children's hip-hop with a grown up sound. 7/14-7/16 11-11:45 am. GEICO Gecko Exhibit - See giant geckos in a naturalistic environment & check out interactive displays. Closes 8/30. Festival of Flight - Features colorful parrots, Maccaws & other birds in a free-flight show. Closes 9/7. $18; $15 children 2-11; free for children under 2. Daily 9:30 am-5 pm.

*FREE* Polish American Cultural Center & Museum 308 Walnut St.; 215-922-1700. www.polishamericancenter.org. Features exhibits on Polish history & culture, including Great Men & Women of Poland, History: A Tradition of Service & Polish Folk Art. Mon.-Sat. 10 am-4 pm.

Ryerss Museum & Library 7370 Central Ave.; 215-685-0544. Asian art & artifacts as well as generations of family heirlooms & paintings. Donations accepted. Fri.-Sun. 10 am-4 pm.

University of Pennsylvania Museum of Archaeology & Anthropology 3260 South St.; 215-898-4000. www.museum.upenn.edu. 3 gallery floors with art & artifacts from ancient Egypt, Mesopotamia, Asia, the Americas, Africa, Polynesia & the ancient Mediterranean world. Summer Wonders 2009 - Wed. 10:30-11:30 am. Weekly, free themed programs for visitors. Ends 8/12. Fulfilling a Prophecy: The Past & Present of the Lenape in PA - Featuring never-before displayed objects & photographs from the private collections of Lenape people in PA. Closes 9/13. Painted Metaphors: Pottery & Politics of the Ancient Maya - Over 150 items from the realm of the ancient Mayans. Figurines, jades, instruments, pots & more. Closes Fall, 2009. Suggested donation: $10; $7 seniors; $6 students & children 6-17; free for children under 6. Tue.-Sat. 10 am-4:30 pm, Sun. 1-5 pm.

Wagner Free Institute of Science 1700 W. Montgomery Ave.; 215-763-6529. www.wagnerfreeinstitute.org. Founded 1855. Houses Wagner's natural history collection of skeletons, mounted animals, fossils. Donation suggested: $8. Tue.-Fri. 9 am-4 pm.

Woodford Mansion 33rd & Dauphin St., East Fairmount Park; 215-229-6115. www.woodfordmansion.org. Elegant 18th century summer house furnished with an exquisite collection of period antiques. Tours $5; $3 seniors. Tue.-Sun. 10 am-4 pm. Closed major holidays.

*FREE* Woodlands Cemetery at The Woodlands 4000 Woodland Ave.; 215-386-2181. www.woodlandsphila.org. National Historic Landmark District featuring the William Hamilton mansion & carriage house of 1789 & the continuously active Woodlands Cemetery founded on the remains of Hamilton's estate in 1840. $3-$5. Open daily from dawn to dusk.

Pennsylvania suburbs

*FREE* Brandywine Battlefield Historic Site Route 1, Chadds Ford; 610-459-3342. www.ushistory.org/brandywine. 52 acres of woodlands, meadows, Washington's headquarters, artifacts, weapons, uniforms. Summer History Camp - Seven 1-week experiences teach soldier life, leadership & coloinial life in Chadds Ford. Reservations required. Ends 8/14. House tours: $5; $3.50 seniors; $2.50 children 6-17; free for children under 6. Tue.-Sat. 9 am-5 pm, Sun. noon-5 pm.

Chadds Ford Historical Society 1736 Creek Rd., Chadds Ford; 610-388-7376. www.chaddsfordhistory.org. Moo to You - Exhibit of items within the dairy industry donated from local farmers & members of the Chadds Ford Historical Society. Closes 9/6. Tours of the John Chads' House - Guided historic house tour. Beehive oven baking most weekends. Closes 9/6. Barns-Brinton House & Tavern - Demonstrations include hearth cooking & period dressed guides. Closes 9/6. $5; $3 children 12-17; free for children 12 & under.