4 links
C.I.A.R.U.- Rock Art Research Center
geocities.com
Organization whose objective is to preserve and to make known the prehistoric national rock art.
Colonia del Sacramento
ovpm.org
Resource of the Organization of World Heritage Cities. Brief history, urban morphology and links.
History of Uruguay
motherearthtravel.com
From the 16th century to modern times, taken from the Area Handbook of the US Library of Congress.