The sculptures Pietà and David. The vast mural paintings in the Sistine Chapel of the Vatican, Rome.
their is no picture below
The Olmecs used glyphs to write their language, but because the language is unknown it is likely that the glyphs will never be translated. The term "hieroglyphs" implies that the writing is entirely religious in character, but since we do not know that, it is more accurate to call them "glyphs". The link below takes you to a site giving an analysis of Olmec glyphs.
Current thinking is that the language of the Omlec is related to the Zoquean branch of Mixe-Zoquean language family. There is a suggestion that Omlecs may have had at least two source languages, the Olmecs of San Lorenzo spoke proto-Mixe and the Olmecs of La Venta spoke proto-Zoque