In which country would you find the Sistine Chapel?

In which country would you find the Guggenheim Museum Bilbao? In which country would you find the Prado Museum? In which country would you find Knossos? In which country would you find the Hermitage Museum? In which country would you find Teotihuacan? In which country would you find the Nazca Lines? In which country would you find Angel Falls? In which country would you find Sugarloaf Mountain?