Koh Samui, Thailand Thailand is called "the land of smiles" — not just because visitors love it but also thanks to the country's welcoming locals. Koh Samui serves the title well with its quality of life and prosperity on the rise. Visitors are drawn to the large island's beautiful beaches, jungle waterfalls, intoxicating culture, and fascinating people. Happiness is contagious on this island. Image Source: Flickr user Sarah_Ackerman