Downtown Rio de Janeiro at twilight, Brazil
How the inside of the "pyramid" cathedral looks like:
The Carioca Aqueduct (Portuguese: Aqueduto da Carioca) is an aqueduct in the city of Rio de Janeiro, Brazil. The aqueduct was built in the middle of the 18th century to bring fresh water from the Carioca river to the population of the city. It is an impressive example of colonial architecture and engineering.