[OSM-legal-talk] license for "Wiki Loves Monuments"

[Kolossos]

This september will be a relative large event from Wikimedia-side across 
europe: "Wiki Loves Monuments". It is a public photo contest around 
monuments (overview of the cultural heritage, also small houses) and we 
will create lists of monuments in Wikipedia:
http://commons.wikimedia.org/wiki/Commons:Wiki_Loves_Monuments_2011

We (Wikipedia-people) will ask different official side for the object 
lists they have as starting point for us. This lists will contains a lot 
of objects (>10.000) with adresses, descriptions, coordinates (with 
luck), year of build, architect,....

My question is now under which license or terms we should ask for these 
list so that they later reusable for OpenStreetMap. Would a CC-BY-SA ok 
or should it be ODBL?

Greatings Tim alias Kolossos

  P.S: Are there other ideas to involve OSM in this project?