Dozens of girls and young women in countries around the globe are proving you don’t need superpowers to fight for justice, equality and peace. After traveling to 13 countries to visit 15 girl-led nonprofits, photojournalist Paola Gianturco has collected their stories in a new book, "Wonder Girls: Changing Our World." The project features the stories of 90 young female activists transforming the world around them using their intelligence, determination, creativity, and dreams.