Features a 5,500-square-foot stadium with Astro Turf and a Jumbo Tron screen, full of virtual reality games that allow visitors to embrace their inner athletes. The exhibit focuses on how science plays an important role in sports. Now that's something a Wii can't teach.

Features a cross-cultural collection of Korean screen paintings and Chinese ceramics, the latter of which feature narrative designs from novels and legends.

A total-body workout combining martial arts, aerobic exercise and kickboxing. All levels welcome.

Martial Arts Master Lawrence Whitaker leads this total-body workout that combines martial arts, aerobic exercise, and kickboxing.

What came first: the cheesesteak or the pretzel? This tour explores the history behind our city's favorite foods.

Take your taste buds on a tour of the Reading Terminal Market, where you'll learn the history behind Philadelphia food staples, like cheesesteaks, hoagies and turtle soup. Reservations are required.

Features interactive stations about how trains work, including one that allows visitors to keep the Baldwin 60000 train running by adding coal and tinkering with the controls.

Features several installations and stations where visitors can learn about trees and their relationship to people. The main attraction, "Out on a Limb," takes visitors 50 feet up in the air for a bird's-eye view of Morris' gardens.

This tour allows you to experience the Penitentiary at night, taking you from Al Capone's digs to Death Row. The Restored Synagogue will also be open.

Visitors can take a tour of the historic hillside where George Washington and his Continental Army struggled to survive through the winter of 1977 to 1978.

This community for cancer support and education needs volunteers to assist with outreach efforts, phones, mailings, special programs and fundraising events. Call Heather Baron at 215-879-7733, e-mail hbaron@twcp.org or visit twcp.org.

Features a reconstruction of Wharton Esherick's three-sided outhouse, which was inspired by the 1919 film "The Cabinet of Dr. Caligary."

Features interactive stations exploring the science, history and artistic skill behind boat construction.

Philly's public radio outlet seeks administrative volunteers to help with data entry, filing and assembling mailings. Call Nadine Vassallo at 215-351-1261 or e-mail nvassallo@whyy.org.

Volunteers are needed for William Way Community Center's events, including peer counseling, seniors programs, book clubs, gallery shows and continuing education classes. Call 215-732-2220 or e-mail firstrep@waygay.org.

Volunteers are needed to answer WOAR's 24-hour hotline and go to hospitals to provide support for rape survivors. Call Carey at 215-985-3315, ext. 191 or visit woar.org.

Walk through this colonial landscaped estate, which includes William Hamilton's mansion and the cemetery where artist Thomas Eakins rests.

Start your workday calmly, before the 9-to-5 pains set in.