After spending the summer assembling pre-Incan pottery shards and discovering ancient mummies protruding out of the ground in the deserts of southern Peru, my wife and i took a vacation across the South American continent to the Atlantic coast, scheduling ourselves a week and a half to explore Uruguay.   We touched down in Montevideo and promptly took a bus to the coastal villa of Colonia del Sacramento, a UNESCO world heritage site and an all-around incredible town. During the two-and-a-half