Through the Facebook account of Wiki Loves Monuments Mexico.
You can read the full procedures here:
http://www.wikilovesmonuments.mx/premios/ (in Spanish)


2013/9/11 Platonides <platonides@gmail.com>
On 11/09/13 00:28, Ivan Martínez wrote:
Hi folks!

This year our sponsor Carl Zeiss will support our "Audience Award", a
special prize for the photo who receive more votes from October 1st to
10th. I want to know if another country is giving a similar prize. If
not, you have a new idea :)

Best regards.

I wonder, how do you plan to perform “votes”?



--
Atentamente:

Iván Martínez
Presidente
Wikimedia México A.C.
wikimedia.mx

Imagina un mundo en donde cada persona del planeta pueda tener acceso libre a la suma total del conocimiento humano.
Eso es lo que estamos haciendo.