Its capital city of Quito, lies smack in the middle of the imaginary line.
This was replaced by a 30-meter tall tower topped by a globe five feet across in 1979.
The monument lies inside a park named Mitad del Mundo or Middle of the World.
A thick yellow line runs through the grounds that supposedly marks the precise position of the equator.
Around half a million people visit Mitad del Mundo each year.
