Why is Puerto Princesa Underground River trending?
Puerto Princesa underground River, one of the best tourist spots in the Philippines, was officially proclaimed as one of the New 7 Wonders of the World.
First trend: January 28 at 07:30 UTC | Last trend: January 28 at 09:50 UTC | Last defined: January 28 at 15:02 UTC | Link: http://wttrend.com/433319