Please join us on this amazing, awesome tour! HERE
Please upload a Math picture of your city! All pictures and places in your city will form a walk, a Math walk, whose final result is this.
You can see an example on this video.
Maths walk in Brest
https://www.google.com/maps/d/u/0/edit?hl=en&msa=0&z=13&ie=UTF8&mid=1eb8df00CMrL0E6RKAC3Ter20u8g