Tennis champ Serena Williams recently built a new school in Jamaica! 
While many celebs don't have a problem writing checks for a good cause, Serena gets out in the trenches.  Instagram pics shows Williams working hard to get the school up and running, from the ground up, literall.
Her non-profit, the Serena Williams Fund partnered with Helping Hands Jamaica to build the Salt Marsh Primary School. The mission of her charity is to help “individuals or communities effected by senseless violence, and [ensure] equal access to education.”
This is the third school Serena has built. Previous secondary schools were created in partnership with Build Africa Schools in Uganda and Kenya.