Chocolate Hills

The Chocolate Hills is composed of more than 1,200 perfectly cone-shaped hills of about the same size and spread in an area of more than 50 square kilometres. This famous tourist attraction and unusual geological formation located in Bohol, Philippines are covered in green grasses and turns brown during the summer, hence, it was called Chocolate hills because it's color is like chocolate during the summer.

Source: wikipedia.org

Source: pinoyworld.org