I went over to Asia twice in the last 5 years. I used Trip Advisor both times. The first time was for Hong Kong. I use Trip Advisor for sightseeing places. The second time i went to the Philippines. I actually planned my whole trip around Trip Advisor. I had one of the best times in my life ever.
The picture is of Puerto Princesa Subterranean River National Park. I first heard of it on Trip Advisor. Once in a lifetime places to visit in the world,I think.