A tourist walks around the Cabeza Colosal Olmeca, property
of the Mexico's Antropologic Museum of Xalapa, in a Buenos Aires art
gallery, Wednesday, April 21, 2004. The sculpture, part of a collection
of pre-Columbian works produced by the great cultures of the state of
Veracruz, will be exhibited in Buenos Aires, Argentina, through June
20. (AP Photo/Natacha Pisarenko)

Notice the helmet and size of head!

Carved Stone head found in LaVenta, Mexico
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Underwater Carved stone head - Japan

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Underwater Carved Stone Head, Japan