Most Unicorns of the start-up world can be spotted in the United States, no surprises there. The rest of the world, however, is not leaving any stone unturned to match that pace. We have looked into the top 100 start-ups that have reached the $1 billion mark and became Unicorn. While 61% of the top 100 Unicorn start-ups are from the United States alone, China holds the second place with 16%. Read our complete list of countries with most Unicorn start-ups here.