Always on the go, 7-year-old Emily travels to places near and far with her mother, a writer who enjoys sharing adventures with her daughter. Emily and her mom have visited many countries around the world and Emily loves to take long car rides or travel on planes and trains to visit wonderful places she's never seen. Today, Emily and her mother are heading to one of the most important cities in the United States, Philadelphia - the place where America was born. Emily's Philadelphia adventure will be full of surprises as she and her mom explore historic buildings and monuments, eat unique food, visit exciting and unusual museums, and check out the country's oldest zoo.