At map coordinates (0,0) there is a well.
At the bottom of the well is the Center of the World.
At the Center of the World is (going to be...)
The plan is to have a platform North, East, South and West every 10 blocks down to tie into various transit stations and systems. Making the Center of the World a useful transit hub as well as a commemorative tourist location.
Center of the World Gift Shop coming soon!