Lisa Ling follows a Houston man on a "marriage tour" of Barranquilla, Colombia, meeting women who advertised themselves on a marriage Web site.
A report on plural marriage in the U.S. focuses on the polygamous community in Centennial Park, Ariz.
The "swinger" lifestyle is explored in a report that includes visits to house parties in Arizona, swingers' clubs in Nashville and workshops in Los Angeles.
Arranged marriages in modern America are explored.
A look at three American families who practice polyamory.
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