For a real multicultural difference, head to the annual Voodoo festival at Ouidah, a small town and former slave port in the West African country of Benin. It commemorates the estimated 60 million people who lost their homelands and their freedom during the African slave trade. The central belief of voodoo is that everything is spirit, including humans. Devotees offer dances to the spirits and animal sacrifices at shrines, use fetishes and enter trance states with an energy and devotion that may unsettle some. The African countries around Benin rank high on any diversity index because of their multitude of tribal groups and languages.