This is hardly your typical museum with endless corridors of artefacts and carefully curated collections. In fact, the El Zanjon is the exhibit itself, depicting a tale of the city’s past within its walls. Practically two centuries old, history runs deep in the mansion (literally). Jorge Eckstein, amateur historian and Argentine chemical engineer, discovered a 500-foot network of old tunnels, sewers and cisterns dating to the city’s earliest settlements while attempting to renovate the then conventillo (urban tenement). The crumbling structure was restored over the next two decades, with the help of historians and architects.

This archaeological site has become one of the most important in the city. The resultant unearthing of over a 130 truckloads of debris had Eckstein discovering various treasures like French tiles, African pipes and other relics and even the foundations of a 19th century colonial era home. As you walk through this restored piece of Buenos Aires’ history, you will discover an underground slave cell and photographs dating back to the 19th century. Peer at the wall made of seashell mortaring, and discover the early traditions of Buenos Aires. Truly, the perfect spot for history buffs, and those who are eager to soak in the stories told within this fascinating building.