Avencas

Adiantum capillus-veneris on a wall at Parque das Ruínas, Santa Teresa, Rio de Janeiro, Brazil.

From Wikimedia Commons (Art Deco › Art Deco by country › Art Deco architecture by country › Art Deco architecture in Brazil › Estação Central do Brasil › Clock tower of Estação Central do Brasil). By Julio Pinon. CC BY-SA 3.0.