A skeletal pyramid rose in the middle of Clark Park in West Philadelphia Thursday evening as the farmers' market crowd swelled around it. Members of Tangle Movement Arts, a Philadelphia-based all-female acrobatic troupe, assembled the seemingly impromptu setting.

The crowd surrounded the simple apparatus, seated on blankets filled with friends, family, and dinner as the performers started their show.

Disguised as shoppers from Clark Park's popular farmers market, one by one the women of Tangle Arts began their high flying routines. They drew "oohs" and "aahs" from the crowd of more than 100  as they tangled with swings, silks and ropes.

Tangle Movement Arts put together "Interactions" as part of the City of Philadelphia’s Performances in Public Spaces program, managed by the Office of Arts, Culture, and the Creative Economy. The performance explores interactions and chance meetings in public spaces.

The Performances in Public Spaces program provided grant money to 23 artists and organizations like Tangle Arts for 24 separate performances in public parks and plazas across Philadelphia through Nov. 1.