Atwater Kent Museum 15 S. Seventh St.; 215-685-4830. www.philadelphiahistory.org. How Philly Works: Streets as Barometers of Urban Life - Historical objects show sts. of Phila (street light, city charter parchment, wampum belt, compass, trolley model). Closes 8/31. $5; $3 seniors & children 13-17; free for children under 12. Wed.-Sun. 1 pm-5 pm.
Bartram's Garden 54th St.; 215-729-5281. www.bartramsgarden.org. Ongoing: Garden & River - Multimedia exhibition features artwork inspired by Bartram's Garden & the Schuylkill River. Daily 10 am-5 pm (Grounds daily dawn-dusk).
Betsy Ross House 239 Arch St.; 215-627-5343. www.betsyrosshouse.org. Guided & Self-Guided Tours. Meet Betsy Ross - Circa 1740 Georgian-style home of flagmaker. Sat.-Sun. 1 & 2 pm. Optional 25-min audio tour ($4). $3; $2 children under 13. Tue.-Sun. 10 am-5 pm.
*FREE* Christ Church 2nd & Market Sts.; 215-922-1695, ext. 30. www.oldchristchurch.org. Georgian architectural treasure attended by founding fathers. Talks daily. Donations accepted. Mon.-Sat. 9 am-5 pm; Sun. 1-5 pm.
Christ Church Burial Ground 5th & Arch Sts.; 215-922-1695, ext. 30. www.oldchristchurch.org. Final resting place of Benjamin Franklin, other founding fathers, Revolutionary War heroes & famous Philadelphians. $2; $1 students; $10 group of up to 25 people. Mon.-Sat. 10 am-4 pm; Sun. noon-4 pm, weather permitting.
Civil War & Underground Railroad Museum 1805 Pine St.; 215-735-8196. www.cwurmuseum.org. Saturday Story Hour - 2nd Sat. 11 am. Hear exciting stories of the Underground Railroad & Civil War. $5; $4 seniors; $3 students & ages 3-12; free under 3. Thu.-Sat. 11 am-4:30 pm.
Eastern State Penitentiary 2124 Fairmount Ave.; 215-236-3300. www.easternstate.org. Historic Tour of Eastern State Penitentary - Tours begin on the hour. Daily 10 am-5 pm, last entry for most tours at 4 pm.
*FREE* Edgar Allan Poe National Historical Site Spring Garden St.; 215-597-8780. www.nps.gov/edal. Guided Tours - Home of the author, 1843-44. Wed.-Sun. 9 am-5 pm.
*FREE* Federal Reserve Bank of Philadelphia 100 N. 6th St.; 866-574-3727. www.philadelphiafed.org. Money in Motion. Mon.-Fri. 9:30 am-4:30 pm. Open weekends Jun.-Aug.
The Franklin Institute 222 N. 20th St.; 215-448-1200. www.fi.edu. View the Night Sky From the Rooftop Observatory - 2nd Thu. 7:30 pm. Watch the moon & stars rise above the Philadelphia skyline. $27.50 weekdays, $32.50 weekends. Discounts for seniors, students, military & children. IMAX & other permanent exhibits open daily 9:30 am-5 pm.
Franklin Square Sixth & Race Sts.; 215-629-4026. www.onceuponanation.org. Philadelphia Park Liberty Carousel - 30-horse carousel is a great compliment to the rich history of Philadelphia's carousel making. Daily 10 am-9 pm.
Independence Hall Chestnut St.; 215-597-8974. www.nps.gov/inde/independence-hall-1.htm. Independence Hall Tour. Daily 9 am-5 pm.
Independence Living History Center 115 S. Third St.; 215-629-4026. www.onceuponanation.org. Once Upon a Nation: Storytelling Benches - 13 one-of-a-kind storytelling benches scattered all over the historic district (Map & info available at History Center). Daily 10:30 am-4:30 pm. Once Upon a Nation: Independence After Hours - Fri. & Sat. 5:30 pm.
Independence National Historical Park 6th & Markets Sts.; 215-965-2305. www.nps.gov/inde. Carpenters' Hall - (Tue.-Sun. 10 am-4 pm). Congress Hall - (Daily 9 am-5 pm). Most sites free. Daily 8:30 am-5 pm.
Independence Seaport Museum 211 S. Columbus Blvd.; 215-925-5439. www.phillyseaport.org. Behind the Scenes Tour of Cruiser Olympia - 1st Sat. noon-1 pm. $9; $8 seniors; $6 children 3-12; free for children under 3; free Sun. 10 am-noon. Daily 10 am-5 pm.
*FREE* Laurel Hill Cemetery: The Underground Museum 3822 Ridge Ave.; 215-228-8200. www.theundergroundmuseum.org. Mon.-Fri. 8 am-4:30 pm; Sat.-Sun. 9:30 am-5 pm.
Laurel Hill Mansion East Fairmount Park; 215-235-1776. www.fairmountpark.org/LaurelHill.asp. Tours of the Mansion - Georgian-style mansion built in 1767 by Rebecca Rawle. $5.
*FREE* Liberty Bell Center 501 Market St.; 215-965-2305. www.nps.gov/inde. Home of the Liberty Bell - Exhibits on bell's origins & role as symbol of freedom. Daily 9 am-5 pm.
Lights of Liberty Show 6th & Chestnut Sts.; 215-542-3789. www.lightsofliberty.org. Outdoor, nighttime sound & light spectacular with surround sound & images projected on historic buildings telling the story of struggle for independence. $19.50; $16.50 seniors & students; $13 children 12 & under.
Masonic Temple One North Broad St.; 215-988-1900. www.pagrandlodge.org. Open for Tours - Built in 1873, this National Historic Landmark is a magnificent example of architecture, art & history. Tue.-Fri. 11 am, 2 & 3 pm; Sat. 10 am & 11 am. Tue.-Fri. 10 am-5 pm; Sat. 10 am-noon.
Museum of the American Philosophical Society 104 S. 5th St.; 215-440-3400. www.amphilsoc.org. UNDAUNTED: Five American Explorers, 1760-2006 - Five notable explorers with Philly connections who were also part of the American Philosophical Society. Closes 12/28. Fri.-Sun. 10 am-4 pm.
The Mutter Museum 19 S. 22nd St.; 215-563-3737. www.collphyphil.org. The Medical World of Benjamin Franklin - Closes Fall '07. $12; $8 seniors, students, children 6-17; free for children under 6. Daily 10 am-5 pm, Fri. until 9 pm.
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, American Natl Tree, theater. $12; $11 seniors; $8 children 4-12; free for children under 4 & military. 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. Fathers Are Heroes Month - Pose for a picture with your dad, make a picture frame, free activity booklet for kids. Closes 6/30. Meet the Heroes Tour - Interactive exhibits, complimentary hand-crafted souvenir & more. Closes 6/30. $7; $6 seniors; $5 students; $2 children 5-7; free for children under 5. Tue.-Sun. 10 am-5 pm.
National Museum of American Jewish History 55 N. Fifth St.; 215-923-3811. www.nmajh.org. Forshpeis - Menus, cookbooks, recipes & other artifacts explore themes of identity, immigration & cultural expression. Closes 9/3. 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. Big Cat Days - Arts & crafts, temporary tattoos, storytelling, cat talks, training demonstrations & more. Included in admission. 6/23-6/24. 11 am-3 pm. $12.95-$16.95; 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. Mon.-Sat. 10 am-4 pm.
University of Pennsylvania - Morris Arboretum 100 Northwestern Ave.; 215-247-5777. www.morrisarboretum.org. Wellness Walks - Sat. 10:30 am. Yoga in the Garden - Thu. 7 pm. Please bring a mat or blanket & wear comfortable clothes. $10; $8 seniors; $5 students, children 3-18; free for children under 3. Daily 10 am-4 pm.
University of Pennsylvania Museum of Archaeology & Anthropology 3260 South St.; 215-898-4000. www.museum.upenn.edu. Select Egyptian galleries will be open Sun.; otherwise, Penn Museum is closed summer Sundays. India Beats - Indian folk & contemporary dances. 6/27. 10:30 am. $8; $5 students, seniors; free for children under 6. Tue.-Sat. 10 am-4:30 pm.
Wagner Free Institute of Science 1700 W. Montgomery Ave.; 215-763-6529. www.wagnerfreeinstitute.org. $8 donation. Guided tours: $15; $10 seniors; $5 children. Tue.-Fri. 9 am-4 pm.Brandywine Battlefield Historic Site
Route 1, Chadds Ford; 610-459-3342. www.ushistory.org/brandywine
. House tours: $5; $3.50 seniors; $2.50 children 6-17; free for children under 6. Park free. Tue.-Sat. 9 am-5 pm, Sun. noon-5 pm.
Fonthill Museum E. Court St., Doylestown; 215-348-9461. www.fonthillmuseum.org. Henry's Birthday Festivities - Refreshments & crafts in honor of Henry Mercer's birthday. $4. 6/24. 1-4 pm. $9; $8 seniors; $4 ages 5-17; free for ages under 5. Mon.-Sat. 10 am-5 pm, Sun. noon-5 pm.
Hopewell Furnace 2 Mark Bird Ln., Elverson; 610-582-8773. www.nps.gov/hofu. Hiking - Walk the many miles of blazed trails & historic roadways. Daily 9 am-5 pm.
Longwood Gardens Rte. 1, Kennett Square; 610-388-1000. www.longwoodgardens.org. Illuminated Fountain Shows - Thu.-Sat. 9:15 pm. Half-hour illuminated show set to classical music. Firefly Nights - Learn about, identify, catch & release nature's nightlights. 6/22. 6-9 pm. $12; $6 ages 16-20; $2 ages 6-15; free for ages under 6. Outdoor gardens, DuPont House & conservatories: Daily 9 am-5 pm.
The Mercer Museum 84 S. Pine St., Doylestown; 215-345-0210. www.mercermuseum.org. Colonial Playtime - Demonstration of Colonial-era games. 6/23. 1-3 pm. Tool Sunday - 4th Sun. $8; $7 seniors; $4 children 5-17; free for children under 5. Mon., Wed.-Sat. 10 am-5 pm; Tue. 10 am-9 pm; Sun. noon-5 pm.
Parry Mansion Museum S. Main & Ferry Sts., New Hope; 215-862-5652. www.newhopehistoricalsociety.org. Guided Tours - Historical home of Parry family from 1784 to 1966. $6; $5 seniors & students 12 & over; $1 students under 12. Open Sat. & Sun. until last weekend in Oct.
Pennsbury Manor 400 Pennsbury Memorial Rd., Morrisville; 215-946-0400. www.pennsburymanor.org. Tue.-Sat. 9 am-5 pm; Sun. noon-5 pm.
*FREE* Pennypacker Mills 5 Haldeman Rd., Schwenksville; 610-287-9349. historicsites.montcopa.org. Guided Tour of Pennypacker Mills - Turn-of-the-century mansion & farm of PA's 25th Governor Samuel W. Pennypacker (1903-1907). Tue.-Sat. 10 am-4 pm; Sun. 1-4 pm.
Pottsgrove Manor 100 W. King St., Pottstown; 610-326-4014. www.historicsites.montcopa.org. Guided Tours of Pottsgrove Manor - Built in 1752 for John Potts, ironmaster & founder of Pottstown. 6/23. 11 am-4 pm. Tue.-Sat. 10 am-4 pm, Sun. 1-4 pm.
Swedish Cabin 9 Creek Rd., Drexel Hill; 610-237-8064. www.swedishcabin.org. This piece of America's past, located along the banks of Darby Creek, was over 100 years old at the time of the American Revolution. Call for group tours or appointments.
Thomas Massey House Intersection of Lawrence & Springhouse Rd., Broomall; 610-353-3644. www.thomasmasseyhouse.org. Open for tours Apr.-Oct., Sun. 1-4 pm or by appointment.
Valley Forge National Historical Park Route 23, Valley Forge; 610-783-1077. www.nps.gov/vafo. Delaware Valley Amateur Astronomers: View the Heavens - View the Moon, the planets, double stars, star clusters & more through telescopes set up by the DVAA. 610-731-5408. Free. 6/23. 8:30 pm. Washington's Headquarters: $3. Daily 6 am-10 pm.
Washington Crossing Historical Park/Memorial Building Auditorium 1112 River Rd., Washington Crossing; 215-493-4076. www.ushistory.org/washingtoncrossing. Tours begin on the hour. $5; $4 seniors; $2 children 6-17. Tue.-Sat. 9 am-5 pm, Sun. noon-5 pm.Adventure Aquarium
1 Aquarium Dr., Camden; 866-451-2782. www.adventureaquarium.com
. $17.95; $14.95 children 2-11; free for children under 2. Daily 9:30 am-5 pm.
Battleship New Jersey Museum 62 Battleship Pl., Camden; 866-877-6262. www.battleshipnewjersey.org. 11th Annual Garden State Craft Brewers Festival - Self-guided tour of battleship, tasting glass, live music by Cabin Dogs, beer samples from 16 breweries & more. $35. 6/23. 1 pm. $15-$19; $10.50-$13 veterans, seniors, ages 6-11; free active military in uniform, ages 5 & under. Daily 9 am-5 pm.
Holcombe-Jimison Farmstead 1605 Daniel Bray Hwy. (Rte. 29), north of Lambertville (first exit off Rte. 202 toll bridge); 609-397-2752. www.holcombe-jimison.org. Agricultural museum in old barn displays 19th-early 20th century artifacts. Donation suggested: $5; $3 seniors & students. May-Oct.: Sun. 1-4 pm; Wed. 9 am-noon. Call on Wed. for info & to arrange group/class tours.
*FREE* Howell Living History Farm 70 Wooden's La., Lambertville; 609-737-3299. www.howellfarm.org. Hatchery Program - Children's educational program & parental volunteer effort. Mon.-Fri. 9:15 am-12:45 pm. Regular Farm hours: Tue.-Sat. 10 am-4 pm; Sun. noon-4 pm.
New Jersey State Museum 205 W. State Rd., Trenton; 609-292-6464. www.newjerseystatemuseum.org. Fancy Rockingham Pottery: The Modeller & Ceramics in Nineteenth Century America - Features relief-molded ceramics largely from New England, NJ, MD & OH. Closes 8/31. Tue.-Sat. 9 am-4:45 pm; Sun. noon-5 pm. Donations accepted.
Washington Crossing State Park 355 Washington Crossing-Pennington Rd., Titusville; 609-737-0623. 18th Century Johnson Ferry House. 140-acre natural area. Wed.-Sat. 10 am-4 pm, Sun. 1-4 pm.
Wheaton Arts & Cultural Center 1501 Glasstown Rd., Millville; 800-998-4552. www.wheatonarts.org. Marble Weekend - Exhibits, sales, vintage games, related memorabilia, live artist demos & more. 6/23-6/24. $10; $9 seniors; $7 students; free for children 5 & under. Tue.-Sun. 10 am-5 pm.Delaware Museum of Natural History
4840 Kennett Pike, Wilmington; 302-658-9111. www.delmnh.org
. Dr. Entomo's Palace of Exotic Wonders - Explore habits, misconceptions & adaptations of bugs, spiders & centipedes. Closes 9/3. $6; $5 children 3-17; $4 seniors; free for children under 3. Mon.-Sat. 9:30 am-4:30 pm; Sun. noon-4:30 pm.
Hagley Museum & Library Rte. 100 & Buck Rd., Wilmington; 302-658-2400. www.hagley.org. Hagley at Fifty: Exploding With History - Retrospective exhibit. Closes 12/31. $11; $9 seniors, students; $4 ages 6-14; free under 6. Daily 9:30 am-4:30 pm.
Winterthur Museum & Country Estate Route 52, Winterthur; 800-448-3883. www.winterthur.org. Enchanted Summer Day - Parade, games, crafts, maypole dancing, strolling musicians, ice cream & more. 6/23. 10 am-3 pm. Mysterious Hydrangeas - Gardening workshop. 6/27. 11:30 am. $15; $13 students & seniors; $5 children 2-11; free for children under 2. Tue.-Sun. 10 am-5 pm.