The Chocolate Hills, Philippines.

The Chocolate Hills, Philippines.

An amazingly unusual geological formation in the Bohol province. There are at least 1,260 hills but there may be as many as 1,776 hills spread over an area of more than 50 square kilometres (20 sq mi). They are covered in green grass that turns brown during the dry season, hence the name. There are still many question how these Chocolate Hills of Bohol where formed. Even geologists have not reached any concensus until now.