Which South American capital city is also known as the 'City of Kings'?

What city is the capital of Roraima, Brazil? Which city serves as the capital of the Argentine province of Tierra del Fuego? What is the capital of the Chilean region of Magallanes? What is the highest capital city in South America? What is the administrative capital of Bolivia? Which city is the constitutional capital of Bolivia? Which city is the capital of Colombia's Department of Antioquia? What is the capital of Ecuador's province of Guayas?