Don't be fooled by the extravagant, palace-like exterior; you're looking at one of the world's most beautiful water-pumping stations, a testament to a time when Buenos Aires poured immense wealth into public works. Inside the Palacio de las Aguas Corrientes, you'll discover the fascinating history of the city's sanitation and water supply. The museum itself is a quirky collection of antique toilets, intricate pipes, and faucets, but the real marvel is the building's iron structure, which once supported colossal water tanks. It’s a truly unique glimpse into the city's past, hiding incredible engineering behind a stunning terracotta-tiled facade.