Watch vintage base ball at the Navy Yard

More than 20 teams will deck out in vintage best and play 19th century baseball — or "base ball," as it was called then — in exhibition games according to 1864 rules. Vendors will be selling vintage items, and food trucks will be on site.

Where: Philadelphia Navy Yard at 4747 Broad St. 19112

When: September 17, 2016 at 8:30 a.m. to September 18, 2016 at 4:30 p.m.

How much: Free / pay-as-you-go food and drink