Colonia del Sacramento, known locally as Colonia , is the capital of the department of Colonia , in southwestern Uruguay. It is located on the northern—left—bank of the Río de la Plata, 177 kilometers from Montevideo and off the coast of Buenos Aires, Argentina , from which it is only about 50 kilometers (as the crow flies).

The Cologne Museum is made up of nine Exhibition Spaces that, distributed throughout the city, invite you to tour it while immersing you in its rich history. With complementary and interconnected contents, a new discourse is built that makes known the expressions of our culture, World Heritage. Since the inauguration of the Municipal Museum in 1951, and with the successive formation of the next eight, work has been done jointly. This way of working led us to think about these “museums” as a whole. An inseparable, complementary and collaborative whole : a single museum, the city museum, Cologne Museum.

An 18th century Portuguese mansion and a great showcase of Colonial-style architecture, both from the inside and the outside.

The Basilica of the Holy Sacrament is a Roman Catholic parish church in Colonia del Sacramento. The parish was established on 2 February 1680, being one of the oldest in the country. The first church was a humble mud ranch. It is as old as the city itself (a former Portuguese settlement). The present church dates back to 1810, when it was built according to plans by Tomás Toribio; soon afterward a lightning storm destroyed the building, which was restored between 1836 and 1841. Finally, in 1976 a conceptual refurbishment took place. Architects José Terra Carve, Antonio Cravotto, and Miguel Ángel Odriozola worked on its restoration.

The Street of Sighs is a street in the Uruguayan city of Colonia del Sacramento . It is located within the historic center , declared a World Heritage Site by UNESCO in 1995. The houses, built in the first half of the 18th century, have stone walls, tile roofs and ceramic floors. The doors and windows are small and made of wood. Although only houses with gable roofs remain, there were also three and four.

The plaza was initially created during the founding of the town and was the largest open space in the area. It was originally used for military maneuvers.