![Bruna Alves](https://cdn.statcdn.com/static/../CMS/contactperson/ERI1703_1591697937.png)
World's longest caves
This statistic displays the longest caves in the world. Kentucky's Mammoth Cave has a length of 651.8 kilometers and is considered as the longest cave on earth. This cave is located in a national park and is home to a number of bat species.