The Carioca Aqueduct is one of the most iconic landmarks in Rio de Janeiro, Brazil. It was built in the late 1700s to bring water from distant sources to the city. The aqueduct stretches over 270 metres and is made up of 42 arches with a maximum height of 17.6 metres. Its unique shape has become a symbol of the city and is often used as an example of civil engineering from the period.