After her husband died, Joanne Branham's children bought her a plane ticket to return to Illinois, from Phoenix, Arizona, where she and her husband had retired.
More than 30, 000 people visited the site, but visitors included children who were allowed in for free and season ticket holders who paid a one-off fee.
Earlier this year there was anger when it was announced that parents whose children were conceived after they had bought tickets would be required to get an extra ticket for their newborn child.