Leave your clothes at the door at this weekly underwear-only party. Minimal dress code will be enforced.

This Tom Stoppard play explores disillusionment and motherhood through Veronica, a South African teenager who dreams of a becoming a cabaret singer in Cape Town.

Easels and drawing boards are provided, but you'll need to bring all other materials to this three-hour workshop on sketching models.

Take a walking tour through the only Edgar Allan Poe house that's still standing today.

Take a guided tour of three routes that prisoners used to escape the Penitentiary and discover how the routes have changed over the years.

Channel your inner hippie and take a walk through gardens.

Take a tour with a local guide who will show you around the city's lesser known neighborhoods — on a horse, of course.

This hands-on exhibit specifically for budding nerds features lessons on sailboats, lighthouses and geology.

Take a tour of the Kimmel Center to learn about its history and its architectural and construction highlights.

Learn about the lives of the men and women imprisoned in this infamous prison.

This weekly discussion group offers support, education and prevention programs to gay and bisexual men of color.

Storytellers who lead this tour recreate the sights, events and personalities of the Colonial era.

Kids of all ages are welcome to go buck wild with all the toys in this store — but only for the designated two hours.

Get on the air and show 'em what you've got. This workshop will give you the tools to be a community journalist and produce radio documentaries.

These weekly chat programs provide support, information and resources for those seeking to learn more about sexual orientation and gender identity.

Take a guided tour of the Alfred W. Fleisher Memorial Synagogue, one of the first synagogues in an American prison.

This weekly meeting for young lesbians of color addresses issues affecting the community.

This biannual week features 60 restaurants serving four-course, prix fixe meals for a $25 or $35 set price. What are your options this year? Represented flavors include everything from Thai to Italian, and a few participating restaurants include Cafe Gallery, Swanky Bubbles, Terra Nova, Los Amigos and The Little Tuna. For a full list of participants and more information, visit the Web site.

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

This classic storytime event is set — where else? — in the Fairytale Garden.

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.