Brazil, Rio de Janeiro, Catedral de Sao Sebastiao. The current church was built between 1964 and 1979 and replaced a series of old churches that had served as cathedrals since 1676. It is located in the centre of the city. Conical in form and with a 96 metres (315 ft) internal diameter and an overall height of 75 metres (246 ft), it has a standing-room capacity of 20,000 people.