I’m not sure I’ve seen one of these ‘Causes’ things before, but the Bulgarian Archaeological Society is apparently seeking some assistance in regards to the site of Colonia Ulpia Traiana Ratiaria:
Here’s some info from their page:
The Bulgarian Archaeological Association (BAA) along with Association “Ratiaria” have set themselves the goal of attracting the attention of the international community and to raise funds to protect Colonia Ulpia Traiana Ratiaria. This archaeological site was one of the most important Roman and Early Byzantine centres in the lower Danube area which in the past 20 years was targeted by treasure hunters and destroyed.
Since 2008, the Bulgarian Archaeological Association carried out rescue actions on the territory of Ratiaria. For several years we have discovered 14 new Latin inscription, over 700 artifacts, more then 15 new monumental buildings, and over 20 new legionary stamps. In 2010 was uncovered the well preserved main street (decumanus maximus) of the city. All these data show that Ratsiaria is not irretrievably lost for the Roman archeology.