World Population Day: records high

The biggest human Christmas tree set a new Guinness World Record at the Plaza La Democracia, in Tegucigalpa on December 1, 2014. World Population Day falls on July 11th every year. It was first observed on 11 July 1987, when the world population reached 5 billion. Here's a throwback to the "power of numbers" that hit the records all across the world. [Photo: VCG]