Fodor's Expert Review Arcos da Lapa
Formerly the Aqueduto da Carioca (Carioca Aqueduct), this structure with 42 massive stone arches was built between 1744 and 1750 to carry water from the Carioca River in the hillside neighborhood of Santa Teresa to Centro. In 1896 the city transportation company converted the aqueduct, by then abandoned, into a viaduct, laying trolley tracks along it. For decades, Santa Teresa's rattling yellow street cars (the "bonde" or "bondinho") passed over the aqueduct as they carried passengers from Centro up to the hillside neighborhood of Santa Teresa. The historic bonde underwent extensive upgrades to improve its quality and safety in time for the 2016 Olympics.