Mayan Ruins at Tulum. The square structure on the top of the hill was used by the Mayans as a Hurricane warning system. When the wind speed reached 55 mph it began to create a loud whistle as it blew threw the opening. As the wind grew stronger, the warning did as well.

(Wallpaper 1440x768)

Mayan Ruins at Tulum. The square structure on the top of the hill was used by the Mayans as a Hurricane warning system. When the wind speed reached 55 mph it began to create a loud whistle as it blew threw the opening. As the wind grew stronger, the warning did as well.

(Wallpaper 1440x768)