Christian Carollo is a Philadelphia-based travel photographer and writer. Having visited 48 states and twenty national parks, he is a huge advocate for roadtripping in the United States. In 2013, Christian launched Say Hello To America—a travel site that inspires and encourages others to get out and explore America—while also exploring the relics of his grandparents with his project pastpresentproject.com or Instagram at @sayhellotoamerica and @pastpresentproject.