72 Best Sights in Pennsylvania, USA

In what is technically Roxborough but feels very removed from the dense row houses, visitors can explore more than 355 acres of woods and trails in what is part nature center, part education center, and part art exhibition and performance location (usually in connection with nature). Trails are free and open dusk till dawn every day, while most events and workshops have a fee. There is also access via a trail that connects to the Schuylkill River Trail.

On any given day, runners, cyclists, walkers, dog walkers, and loungers can be found at the expansive Schuylkill River Park. The park runs along the river from Lombard Street to Manning Street, spanning more than three city blocks on the edge of Center City before University City. Even during the coldest months, the park is packed with people and their dogs in the on-site dog parks, children on the playground, athletes shooting hoops at the basketball courts, and people enjoying the skyline vantage points.

Aimed squarely at young kids and their families, this water and theme park based on the popular children's show Sesame Street provides fun places for children to crawl, climb, and jump; float, slide, and splash; and meet, greet, and perhaps hug the ageless Big Bird and his friends. Though there are dry-land activities, the highlights of the park—especially on a hot summer day—are the water rides, including the Rambling River, the interactive Count's Splash Castle, and rides at Big Bird's Beach. (Water attractions are open seasonally.) As befits a park for preteens, the rides in Elmo's World and the roller coasters—Vapor Trail and Oscar’s Wacky Taxi—are modest by theme-park standards, but they've got enough excitement for young riders. Other favorites are the daily, and nightly, parades and shows; Sesame Neighborhood, a replica of the TV street; and pricey meals with characters like Elmo and Grover. Sesame Place Philadelphia is the world's first theme park to be a Certified Autism Center; see website for information. The park's gift shop is large.  Buy tickets online in advance for substantial savings. Check ahead in case any rides or attractions are closed, and note that food is expensive and can be uneven in quality (see website FAQs for info on bringing water). No cash is accepted at the park, but you can buy a debit card at no cost. 

Costumed guides share fascinating tales at Shriver House, the home of George and Henrietta Shriver and their two children, revealing what civilian life was like during the Civil War. After George joined the Union troops and his family fled to safety, the home was taken over by Confederate sharpshooters during the Battle of Gettysburg. You can visit their attic nest, where two of them were killed during the battle, and get a look at Shriver's Saloon in the cellar. 

Marking the city's connections with eleven global "sister cities" such as Kobe, Japan, this small, family-focused park has a prime location near Logan Circle, the Logan Philadelphia hotel, and the Cathedral Basilica of Saints Peter and Paul. A play area for kids features a rocky area to explore and a toy-boat and wading pond, and kids can cool off in a fountain with water jets, April through October. Sister Cities is also home to Robert Indiana's AMOR (Spanish and Latin for "love") sculpture, a companion to nearby LOVE Park's famous LOVE. The handy seasonal café (closed mid-December to early March), in a modern building with floor-to-ceiling windows, has light fare including kid-friendly items.

Founded in 1899, this beloved facility has more than 50 pieces of age-specific equipment for children 10 and younger. An outdoor favorite on the 6½-acre site in East Fairmount Park is the Ann Newman Giant Wooden Slide, measuring 39 feet long, 12 feet wide, and 10 feet tall. The playground, run by a nonprofit organization, includes the 16,000-square-foot Playhouse, a mansion-like building with areas such as Smithville (a miniature town), a library, and a climb-on train. Everyone using Smith must register and get a wristband to enter the site. 

This seasonal oasis—referred to by some as an urban beach—is a combination of three landscaped barges, a hammock lounge, and floating gardens that hug the Delaware River. More than 50 hammocks are strung throughout the park, and there's an award-winning beer garden that pours more than 15 local brews. You can get food from the Franklin Fountain and Chickie's & Pete's as well as pizza, classic boardwalk foods, and more. There's even a boardwalk that's lined with swings, hammocks, bocce courts, Ping-Pong, shuffleboard, and shipping containers that have been converted into an arcade with skeeball, air hockey, and other classic games.

Passengers can step back in time more than 175 years to ride the rails of the Strasburg Rail Road. Called America's oldest short line, the steam locomotive and vintage coaches travel a scenic 45-minute round trip through Amish farm country between Strasburg and Paradise. Eat lunch in the dining car or take an evening dinner ride that might be themed as a murder mystery or wine and cheese tasting. Tours of the mechanical shop are available for a fee, but kids are crazy for the Thomas the Tank Engine excursions. Trains usually depart hourly. 

Lancaster County--based Turkey Hill Dairy, best known for its ice cream, created this interactive extravaganza where kids can milk a mechanical cow, climb aboard a vintage milk delivery truck, and shoot a Turkey Hill commercial. In the Taste Lab you can concoct your own flavor and taste-test it; outside the lab, you can have unlimited samples of the company's flavors. Grown-ups may enjoy the displays on dairy farming and the family-owned company, but mostly this one is for the kids. Reservations are recommended for the Experience, and required for the Taste Lab.

You can tour this 307-foot-long Balao-class submarine (with a "guppy" conversion), that was launched in 1944 and conducted search-and-destroy missions in the South Pacific. A free audio tour, available with the price of admission, tells amazing stories of what life was like for a crew of 80 men, at sea for months at a time, in these claustrophobic quarters. Then you can step through the narrow walkways, climb the ladders, and glimpse the torpedoes in their firing chambers. Tickets are available at the Independence Seaport Museum.

Commodore George Dewey's flagship at the Battle of Manila in the Spanish-American War is the oldest still-afloat steel warship in the world. Dewey entered Manila Harbor after midnight on May 1, 1898. At 5:40 am he told his captain, "You may fire when you are ready, Gridley," and by 12:30 they had destroyed the entire Spanish fleet. You can tour the entire restored ship, including the officers' staterooms, galley, gun batteries, and pilothouse. Admission is included with your ticket to the Independence Seaport Museum.

Established in 1976, this museum moved in 2010 to a new, James Polshek–designed, contemporary building near Independence Hall. The 100,000-square-foot facility, via multimedia displays, historic objects, and ephemera, traces the history of American Jews from 1654 to the present. Highlights include "Only in America," a showcase of the accomplishments of famed Jewish Americans, including Jonas Salk, Barbra Streisand, and Irving Berlin; a three-level timeline covering immigration, the formation of Israel, and the civil rights movement; Seinfeld; a Contemporary Issues Forum, where you can share your views on Post-it-style notes that are electronically scanned and displayed; and "It's Your Story," where you can record clips about your family history. The museum's exterior offers two contrasting sculptures symbolizing how American Jewish history is intertwined with the nation's story: a 19th-century marble monument dubbed Religious Liberty and a sculpture by contemporary artist Deborah Kass.