1. The Maya believed natural wells, as the Xkeken cenote in Mexico's Yucatan, led to the underworld.

2. The underground world called Cenote are water bodies which will make a chill rn down your spine if you manage to walk down the narrow stairs that led to this vertical hole.

3. Divers make their way through a freshwater sinkhole, known as a cenote, in Mexico's Yucatan peninsula in this undated photo.

4. The Maya believed natural wells, such as the Xkeken cenote in Mexico's Yucatan, led to the underworld.

5. Site of one of Mesoamerica's largest ball courts, this royal city is located near a massive underground cenote, or sinkhole, where the bodies of human sacrifices were dropped.