The Cathedral of Brasília was designed by Oscar Niemeyer and currently serves as the head of the Archdiocese in Brasília within the Catholic church. The structural shape of the church is called a ” hyperboloid ” shape due to the extension of the columns. Most of the church inside is underground, so it is far bigger than it seems to be (like an iceberg almost). The building is also encompassed by a pool which must be walked over before going into the cathedral. The church definitely displays the futuristic architectural style that Niemeyer often used. (https://www.architecturaldigest.com/gallery/stunning-modern-architecture-oscar-niemeyer)