Built at the beginning of the 18th century by the Jesuits, the Cripta Jesuítica was originally designed as a novitiate and later converted to a crypt and crematorium. Abandoned after the Jesuit expulsion, it was demolished and buried around 1829 when the city, while expanding Av Colón, knocked the roof into the subterranean naves and built over the entire structure. It remained all but forgotten until Telecom, while laying underground telephone cable in 1989, accidentally ran into it.
The city, with a new outlook on such treasures, exquisitely restored the crypt and uses it regularly for musical and theatrical performances and art exhibits. Entrances lie on either side of Av Colón in the middle of the Rivera Indarte pedestrian mall.