After being brutally attacked in a hate crime outside of a club, Mark Hogancamp was left with brain damage that meant he had little memory of his previous life. In order to cope with the trauma he had experienced, Mark built a ⅙-scale World War II-era Belgian town that he named "Marwencol". Both a documentary and upcoming film starring Steve Carell have explored Mark's story, but the truth of his fascinating, heartbreaking, and inspiring tale is even more incredible.