Montevideo is the pleasant capital city of Uruguay, a country in South America. It is situated on the east bank of the Rio de la Plata and is the southernmost capital city in South America. Colonia (Colonia del Sacramento) is in the Rio de la Plata region of Uruguay. It is filled with old colonial buildings and cobbled streets, and is inscribed on the UNESCO World Heritage List. Punta del Este is a beach resort town in Uruguay complete with casinos, beaches, yachts and lots of tourists. Many of these tourists come from the other side of the Rio de la Plata from Argentina to get some nice fun in the sun on a beach away from the brown waters of the Rio de la Plata.