Next Airing: TUE JUN 11 3AM ET

Throughout history, people have expressed their passions and their personalities through their collections. But some collectors' passions cross the line into obsession. Meet a Londonder who fills his home with tiny human baby skeletons and shrunken heads; a self-proclaimed “Filipino Superman” who, in the last 15 years, has undergone a series of cosmetic surgeries to resemble his superhero; and a Utah resident who has 550 animals living in his house and yard.