In the early 70s, Danish photographer Jacob Holdt hitchhiked over 150,000 kilometers, criss-crossing America from coast to coast. Selling his blood along the way to finance what became a five-year trip, he captured thousands of images on a cheap camera his parents had sent him for his birthday. After touring a slideshow of these American Pictures around the world—a young Barack Obama attended one of his lectures—he became renowned for his razor-sharp yet poignant take on America. This fall Denmark’s Louisiana Museum of Modern Art is mounting a solo exhibition of his work.